21000775092

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^2\times {\mathrm{457}}^1$

素因数の和:706

約数の個数: 144

約数和(自身を含む): 55594502208

約数和(自身を除く): 34593727116

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 74, 97, 111, 132, 148, 194, 222, 291, 388, 407, 444, 457, 582, 814, 914, 1067, 1164, 1221, 1371, 1628, 1828, 2134, 2442, 2742, 3201, 3589, 4268, 4884, 5027, 5484, 6402, 7178, 9409, 10054, 10767, 12804, 14356, 15081, 16909, 18818, 20108, 21534, 28227, 30162, 33818, 37636, 39479, 43068, 44329, 50727, 56454, 60324, 67636, 78958, 88658, 101454, 103499, 112908, 118437, 132987, 157916, 177316, 185999, 202908, 206998, 236874, 265974, 310497, 348133, 371998, 413996, 473748, 487619, 531948, 557997, 620994, 696266, 743996, 975238, 1044399, 1115994, 1241988, 1392532, 1462857, 1640173, 1950476, 2088798, 2231988, 2925714, 3280346, 3829463, 4177596, 4299913, 4920519, 5851428, 6560692, 7658926, 8599826, 9841038, 11488389, 12899739, 15317852, 17199652, 18041903, 19682076, 22976778, 25799478, 36083806, 45953556, 47299043, 51598956, 54125709, 72167612, 94598086, 108251418, 141897129, 159096781, 189196172, 216502836, 283794258, 318193562, 477290343, 567588516, 636387124, 954580686, 1750064591, 1909161372, 3500129182, 5250193773, 7000258364, 10500387546, 21000775092]

約数ペア:

[(1, 21000775092), (2, 10500387546), (3, 7000258364), (4, 5250193773), (6, 3500129182), (11, 1909161372), (12, 1750064591), (22, 954580686), (33, 636387124), (37, 567588516), (44, 477290343), (66, 318193562), (74, 283794258), (97, 216502836), (111, 189196172), (132, 159096781), (148, 141897129), (194, 108251418), (222, 94598086), (291, 72167612), (388, 54125709), (407, 51598956), (444, 47299043), (457, 45953556), (582, 36083806), (814, 25799478), (914, 22976778), (1067, 19682076), (1164, 18041903), (1221, 17199652), (1371, 15317852), (1628, 12899739), (1828, 11488389), (2134, 9841038), (2442, 8599826), (2742, 7658926), (3201, 6560692), (3589, 5851428), (4268, 4920519), (4884, 4299913), (5027, 4177596), (5484, 3829463), (6402, 3280346), (7178, 2925714), (9409, 2231988), (10054, 2088798), (10767, 1950476), (12804, 1640173), (14356, 1462857), (15081, 1392532), (16909, 1241988), (18818, 1115994), (20108, 1044399), (21534, 975238), (28227, 743996), (30162, 696266), (33818, 620994), (37636, 557997), (39479, 531948), (43068, 487619), (44329, 473748), (50727, 413996), (56454, 371998), (60324, 348133), (67636, 310497), (78958, 265974), (88658, 236874), (101454, 206998), (103499, 202908), (112908, 185999), (118437, 177316), (132987, 157916)]