21763125

素因数分解:

$3^2\times 5^4\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 60

約数和(自身を含む): 40571388

約数和(自身を除く): 18808263

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 73, 75, 125, 159, 219, 225, 265, 365, 375, 477, 625, 657, 795, 1095, 1125, 1325, 1825, 1875, 2385, 3285, 3869, 3975, 5475, 5625, 6625, 9125, 11607, 11925, 16425, 19345, 19875, 27375, 33125, 34821, 45625, 58035, 59625, 82125, 96725, 99375, 136875, 174105, 290175, 298125, 410625, 483625, 870525, 1450875, 2418125, 4352625, 7254375, 21763125]

約数ペア:

[(1, 21763125), (3, 7254375), (5, 4352625), (9, 2418125), (15, 1450875), (25, 870525), (45, 483625), (53, 410625), (73, 298125), (75, 290175), (125, 174105), (159, 136875), (219, 99375), (225, 96725), (265, 82125), (365, 59625), (375, 58035), (477, 45625), (625, 34821), (657, 33125), (795, 27375), (1095, 19875), (1125, 19345), (1325, 16425), (1825, 11925), (1875, 11607), (2385, 9125), (3285, 6625), (3869, 5625), (3975, 5475)]