21890416

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{23189}}^1$

素因数の和:23256

約数の個数: 20

約数和(自身を含む): 43133400

約数和(自身を除く): 21242984

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 23189, 46378, 92756, 185512, 371024, 1368151, 2736302, 5472604, 10945208, 21890416]

約数ペア:

[(1, 21890416), (2, 10945208), (4, 5472604), (8, 2736302), (16, 1368151), (59, 371024), (118, 185512), (236, 92756), (472, 46378), (944, 23189)]