21055060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1723}}^1$

素因数の和:1792

約数の個数: 48

約数和(自身を含む): 48658176

約数和(自身を除く): 27603116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 1723, 2444, 3055, 3446, 6110, 6892, 8615, 12220, 17230, 22399, 34460, 44798, 80981, 89596, 111995, 161962, 223990, 323924, 404905, 447980, 809810, 1052753, 1619620, 2105506, 4211012, 5263765, 10527530, 21055060]

約数ペア:

[(1, 21055060), (2, 10527530), (4, 5263765), (5, 4211012), (10, 2105506), (13, 1619620), (20, 1052753), (26, 809810), (47, 447980), (52, 404905), (65, 323924), (94, 223990), (130, 161962), (188, 111995), (235, 89596), (260, 80981), (470, 44798), (611, 34460), (940, 22399), (1222, 17230), (1723, 12220), (2444, 8615), (3055, 6892), (3446, 6110)]