20967688

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 46323900

約数和(自身を除く): 25356212

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 601, 623, 712, 1202, 1246, 2404, 2492, 4207, 4361, 4808, 4984, 8414, 8722, 16828, 17444, 29449, 33656, 34888, 53489, 58898, 106978, 117796, 213956, 235592, 374423, 427912, 748846, 1497692, 2620961, 2995384, 5241922, 10483844, 20967688]

約数ペア:

[(1, 20967688), (2, 10483844), (4, 5241922), (7, 2995384), (8, 2620961), (14, 1497692), (28, 748846), (49, 427912), (56, 374423), (89, 235592), (98, 213956), (178, 117796), (196, 106978), (356, 58898), (392, 53489), (601, 34888), (623, 33656), (712, 29449), (1202, 17444), (1246, 16828), (2404, 8722), (2492, 8414), (4207, 4984), (4361, 4808)]