21490164

素因数分解:

$2^2\times 3^3\times {\mathrm{193}}^1\times {\mathrm{1031}}^1$

素因数の和:1237

約数の個数: 48

約数和(自身を含む): 56058240

約数和(自身を除く): 34568076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 193, 386, 579, 772, 1031, 1158, 1737, 2062, 2316, 3093, 3474, 4124, 5211, 6186, 6948, 9279, 10422, 12372, 18558, 20844, 27837, 37116, 55674, 111348, 198983, 397966, 596949, 795932, 1193898, 1790847, 2387796, 3581694, 5372541, 7163388, 10745082, 21490164]

約数ペア:

[(1, 21490164), (2, 10745082), (3, 7163388), (4, 5372541), (6, 3581694), (9, 2387796), (12, 1790847), (18, 1193898), (27, 795932), (36, 596949), (54, 397966), (108, 198983), (193, 111348), (386, 55674), (579, 37116), (772, 27837), (1031, 20844), (1158, 18558), (1737, 12372), (2062, 10422), (2316, 9279), (3093, 6948), (3474, 6186), (4124, 5211)]