21680984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12263}}^1$

素因数の和:12299

約数の個数: 32

約数和(自身を含む): 46357920

約数和(自身を除く): 24676936

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12263, 24526, 49052, 98104, 159419, 208471, 318838, 416942, 637676, 833884, 1275352, 1667768, 2710123, 5420246, 10840492, 21680984]

約数ペア:

[(1, 21680984), (2, 10840492), (4, 5420246), (8, 2710123), (13, 1667768), (17, 1275352), (26, 833884), (34, 637676), (52, 416942), (68, 318838), (104, 208471), (136, 159419), (221, 98104), (442, 49052), (884, 24526), (1768, 12263)]