21550725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4561}}^1$

素因数の和:4587

約数の個数: 48

約数和(自身を含む): 45255040

約数和(自身を除く): 23704315

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4561, 4725, 13683, 22805, 31927, 41049, 68415, 95781, 114025, 123147, 159635, 205245, 287343, 342075, 478905, 615735, 798175, 862029, 1026225, 1436715, 2394525, 3078675, 4310145, 7183575, 21550725]

約数ペア:

[(1, 21550725), (3, 7183575), (5, 4310145), (7, 3078675), (9, 2394525), (15, 1436715), (21, 1026225), (25, 862029), (27, 798175), (35, 615735), (45, 478905), (63, 342075), (75, 287343), (105, 205245), (135, 159635), (175, 123147), (189, 114025), (225, 95781), (315, 68415), (525, 41049), (675, 31927), (945, 22805), (1575, 13683), (4561, 4725)]