21807056

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80173}}^1$

素因数の和:80198

約数の個数: 20

約数和(自身を含む): 44737092

約数和(自身を除く): 22930036

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80173, 160346, 320692, 641384, 1282768, 1362941, 2725882, 5451764, 10903528, 21807056]

約数ペア:

[(1, 21807056), (2, 10903528), (4, 5451764), (8, 2725882), (16, 1362941), (17, 1282768), (34, 641384), (68, 320692), (136, 160346), (272, 80173)]