19722825

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 36902400

約数和(自身を除く): 17179575

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 479, 549, 675, 915, 1437, 1525, 1647, 2395, 2745, 4311, 4575, 7185, 8235, 11975, 12933, 13725, 21555, 29219, 35925, 41175, 64665, 87657, 107775, 146095, 262971, 323325, 438285, 730475, 788913, 1314855, 2191425, 3944565, 6574275, 19722825]

約数ペア:

[(1, 19722825), (3, 6574275), (5, 3944565), (9, 2191425), (15, 1314855), (25, 788913), (27, 730475), (45, 438285), (61, 323325), (75, 262971), (135, 146095), (183, 107775), (225, 87657), (305, 64665), (479, 41175), (549, 35925), (675, 29219), (915, 21555), (1437, 13725), (1525, 12933), (1647, 11975), (2395, 8235), (2745, 7185), (4311, 4575)]