21525521108

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{204623}}^1$

素因数の和:204681

約数の個数: 72

約数和(自身を含む): 49250541312

約数和(自身を除く): 27725020204

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 289, 364, 442, 476, 578, 884, 1156, 1547, 2023, 3094, 3757, 4046, 6188, 7514, 8092, 15028, 26299, 52598, 105196, 204623, 409246, 818492, 1432361, 2660099, 2864722, 3478591, 5320198, 5729444, 6957182, 10640396, 13914364, 18620693, 24350137, 37241386, 45221683, 48700274, 59136047, 74482772, 90443366, 97400548, 118272094, 180886732, 236544188, 316551781, 413952329, 633103562, 768768611, 827904658, 1266207124, 1537537222, 1655809316, 3075074444, 5381380277, 10762760554, 21525521108]

約数ペア:

[(1, 21525521108), (2, 10762760554), (4, 5381380277), (7, 3075074444), (13, 1655809316), (14, 1537537222), (17, 1266207124), (26, 827904658), (28, 768768611), (34, 633103562), (52, 413952329), (68, 316551781), (91, 236544188), (119, 180886732), (182, 118272094), (221, 97400548), (238, 90443366), (289, 74482772), (364, 59136047), (442, 48700274), (476, 45221683), (578, 37241386), (884, 24350137), (1156, 18620693), (1547, 13914364), (2023, 10640396), (3094, 6957182), (3757, 5729444), (4046, 5320198), (6188, 3478591), (7514, 2864722), (8092, 2660099), (15028, 1432361), (26299, 818492), (52598, 409246), (105196, 204623)]