20902826

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1334

約数の個数: 32

約数和(自身を含む): 38506752

約数和(自身を除く): 17603926

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 497, 994, 1207, 1237, 2414, 2474, 8449, 8659, 16898, 17318, 21029, 42058, 87827, 147203, 175654, 294406, 614789, 1229578, 1493059, 2986118, 10451413, 20902826]

約数ペア:

[(1, 20902826), (2, 10451413), (7, 2986118), (14, 1493059), (17, 1229578), (34, 614789), (71, 294406), (119, 175654), (142, 147203), (238, 87827), (497, 42058), (994, 21029), (1207, 17318), (1237, 16898), (2414, 8659), (2474, 8449)]