20571344

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{1951}}^1$

素因数の和:2618

約数の個数: 20

約数和(自身を含む): 39937920

約数和(自身を除く): 19366576

約数列:

[1, 2, 4, 8, 16, 659, 1318, 1951, 2636, 3902, 5272, 7804, 10544, 15608, 31216, 1285709, 2571418, 5142836, 10285672, 20571344]

約数ペア:

[(1, 20571344), (2, 10285672), (4, 5142836), (8, 2571418), (16, 1285709), (659, 31216), (1318, 15608), (1951, 10544), (2636, 7804), (3902, 5272)]