21854664

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 128

約数和(自身を含む): 67267200

約数和(自身を除く): 45412536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 43, 52, 54, 72, 78, 86, 104, 108, 117, 129, 156, 172, 181, 216, 234, 258, 312, 344, 351, 362, 387, 468, 516, 543, 559, 702, 724, 774, 936, 1032, 1086, 1118, 1161, 1404, 1448, 1548, 1629, 1677, 2172, 2236, 2322, 2353, 2808, 3096, 3258, 3354, 4344, 4472, 4644, 4706, 4887, 5031, 6516, 6708, 7059, 7783, 9288, 9412, 9774, 10062, 13032, 13416, 14118, 15093, 15566, 18824, 19548, 20124, 21177, 23349, 28236, 30186, 31132, 39096, 40248, 42354, 46698, 56472, 60372, 62264, 63531, 70047, 84708, 93396, 101179, 120744, 127062, 140094, 169416, 186792, 202358, 210141, 254124, 280188, 303537, 404716, 420282, 508248, 560376, 607074, 809432, 840564, 910611, 1214148, 1681128, 1821222, 2428296, 2731833, 3642444, 5463666, 7284888, 10927332, 21854664]

約数ペア:

[(1, 21854664), (2, 10927332), (3, 7284888), (4, 5463666), (6, 3642444), (8, 2731833), (9, 2428296), (12, 1821222), (13, 1681128), (18, 1214148), (24, 910611), (26, 840564), (27, 809432), (36, 607074), (39, 560376), (43, 508248), (52, 420282), (54, 404716), (72, 303537), (78, 280188), (86, 254124), (104, 210141), (108, 202358), (117, 186792), (129, 169416), (156, 140094), (172, 127062), (181, 120744), (216, 101179), (234, 93396), (258, 84708), (312, 70047), (344, 63531), (351, 62264), (362, 60372), (387, 56472), (468, 46698), (516, 42354), (543, 40248), (559, 39096), (702, 31132), (724, 30186), (774, 28236), (936, 23349), (1032, 21177), (1086, 20124), (1118, 19548), (1161, 18824), (1404, 15566), (1448, 15093), (1548, 14118), (1629, 13416), (1677, 13032), (2172, 10062), (2236, 9774), (2322, 9412), (2353, 9288), (2808, 7783), (3096, 7059), (3258, 6708), (3354, 6516), (4344, 5031), (4472, 4887), (4644, 4706)]