21910428

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 59230080

約数和(自身を除く): 37319652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 31, 36, 58, 62, 87, 93, 116, 124, 174, 186, 261, 279, 348, 372, 522, 558, 677, 899, 1044, 1116, 1354, 1798, 2031, 2697, 2708, 3596, 4062, 5394, 6093, 8091, 8124, 10788, 12186, 16182, 19633, 20987, 24372, 32364, 39266, 41974, 58899, 62961, 78532, 83948, 117798, 125922, 176697, 188883, 235596, 251844, 353394, 377766, 608623, 706788, 755532, 1217246, 1825869, 2434492, 3651738, 5477607, 7303476, 10955214, 21910428]

約数ペア:

[(1, 21910428), (2, 10955214), (3, 7303476), (4, 5477607), (6, 3651738), (9, 2434492), (12, 1825869), (18, 1217246), (29, 755532), (31, 706788), (36, 608623), (58, 377766), (62, 353394), (87, 251844), (93, 235596), (116, 188883), (124, 176697), (174, 125922), (186, 117798), (261, 83948), (279, 78532), (348, 62961), (372, 58899), (522, 41974), (558, 39266), (677, 32364), (899, 24372), (1044, 20987), (1116, 19633), (1354, 16182), (1798, 12186), (2031, 10788), (2697, 8124), (2708, 8091), (3596, 6093), (4062, 5394)]