20807008

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15859}}^1$

素因数の和:15910

約数の個数: 24

約数和(自身を含む): 41965560

約数和(自身を除く): 21158552

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15859, 31718, 63436, 126872, 253744, 507488, 650219, 1300438, 2600876, 5201752, 10403504, 20807008]

約数ペア:

[(1, 20807008), (2, 10403504), (4, 5201752), (8, 2600876), (16, 1300438), (32, 650219), (41, 507488), (82, 253744), (164, 126872), (328, 63436), (656, 31718), (1312, 15859)]