209901601

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{563}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 275159808

約数和(自身を除く): 65258207

約数列:

[1, 7, 13, 17, 91, 119, 221, 241, 563, 1547, 1687, 3133, 3941, 4097, 7319, 9571, 21931, 28679, 51233, 53261, 66997, 124423, 135683, 372827, 870961, 949781, 1763879, 2306611, 12347153, 16146277, 29985943, 209901601]

約数ペア:

[(1, 209901601), (7, 29985943), (13, 16146277), (17, 12347153), (91, 2306611), (119, 1763879), (221, 949781), (241, 870961), (563, 372827), (1547, 135683), (1687, 124423), (3133, 66997), (3941, 53261), (4097, 51233), (7319, 28679), (9571, 21931)]