21057808

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{22307}}^1$

素因数の和:22374

約数の個数: 20

約数和(自身を含む): 41492880

約数和(自身を除く): 20435072

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 22307, 44614, 89228, 178456, 356912, 1316113, 2632226, 5264452, 10528904, 21057808]

約数ペア:

[(1, 21057808), (2, 10528904), (4, 5264452), (8, 2632226), (16, 1316113), (59, 356912), (118, 178456), (236, 89228), (472, 44614), (944, 22307)]