21550935

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 40629600

約数和(自身を除く): 19078665

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 109, 147, 245, 269, 327, 545, 735, 763, 807, 1345, 1635, 1883, 2289, 3815, 4035, 5341, 5649, 9415, 11445, 13181, 16023, 26705, 28245, 29321, 39543, 65905, 80115, 87963, 146605, 197715, 205247, 439815, 615741, 1026235, 1436729, 3078705, 4310187, 7183645, 21550935]

約数ペア:

[(1, 21550935), (3, 7183645), (5, 4310187), (7, 3078705), (15, 1436729), (21, 1026235), (35, 615741), (49, 439815), (105, 205247), (109, 197715), (147, 146605), (245, 87963), (269, 80115), (327, 65905), (545, 39543), (735, 29321), (763, 28245), (807, 26705), (1345, 16023), (1635, 13181), (1883, 11445), (2289, 9415), (3815, 5649), (4035, 5341)]