20405416

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{110899}}^1$

素因数の和:110928

約数の個数: 16

約数和(自身を含む): 39924000

約数和(自身を除く): 19518584

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 110899, 221798, 443596, 887192, 2550677, 5101354, 10202708, 20405416]

約数ペア:

[(1, 20405416), (2, 10202708), (4, 5101354), (8, 2550677), (23, 887192), (46, 443596), (92, 221798), (184, 110899)]