21918928

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{33413}}^1$

素因数の和:33462

約数の個数: 20

約数和(自身を含む): 43505028

約数和(自身を除く): 21586100

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 33413, 66826, 133652, 267304, 534608, 1369933, 2739866, 5479732, 10959464, 21918928]

約数ペア:

[(1, 21918928), (2, 10959464), (4, 5479732), (8, 2739866), (16, 1369933), (41, 534608), (82, 267304), (164, 133652), (328, 66826), (656, 33413)]