20197688

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12437}}^1$

素因数の和:12479

約数の個数: 32

約数和(自身を含む): 44776800

約数和(自身を除く): 24579112

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12437, 24874, 49748, 87059, 99496, 174118, 348236, 360673, 696472, 721346, 1442692, 2524711, 2885384, 5049422, 10098844, 20197688]

約数ペア:

[(1, 20197688), (2, 10098844), (4, 5049422), (7, 2885384), (8, 2524711), (14, 1442692), (28, 721346), (29, 696472), (56, 360673), (58, 348236), (116, 174118), (203, 99496), (232, 87059), (406, 49748), (812, 24874), (1624, 12437)]