20661564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:463

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 40624836

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 59, 66, 77, 84, 118, 132, 154, 177, 231, 236, 308, 354, 379, 413, 462, 649, 708, 758, 826, 924, 1137, 1239, 1298, 1516, 1652, 1947, 2274, 2478, 2596, 2653, 3894, 4169, 4543, 4548, 4956, 5306, 7788, 7959, 8338, 9086, 10612, 12507, 13629, 15918, 16676, 18172, 22361, 25014, 27258, 29183, 31836, 44722, 50028, 54516, 58366, 67083, 87549, 89444, 116732, 134166, 156527, 175098, 245971, 268332, 313054, 350196, 469581, 491942, 626108, 737913, 939162, 983884, 1475826, 1721797, 1878324, 2951652, 3443594, 5165391, 6887188, 10330782, 20661564]

約数ペア:

[(1, 20661564), (2, 10330782), (3, 6887188), (4, 5165391), (6, 3443594), (7, 2951652), (11, 1878324), (12, 1721797), (14, 1475826), (21, 983884), (22, 939162), (28, 737913), (33, 626108), (42, 491942), (44, 469581), (59, 350196), (66, 313054), (77, 268332), (84, 245971), (118, 175098), (132, 156527), (154, 134166), (177, 116732), (231, 89444), (236, 87549), (308, 67083), (354, 58366), (379, 54516), (413, 50028), (462, 44722), (649, 31836), (708, 29183), (758, 27258), (826, 25014), (924, 22361), (1137, 18172), (1239, 16676), (1298, 15918), (1516, 13629), (1652, 12507), (1947, 10612), (2274, 9086), (2478, 8338), (2596, 7959), (2653, 7788), (3894, 5306), (4169, 4956), (4543, 4548)]