21490111525

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{6197}}^1$

素因数の和:6430

約数の個数: 48

約数和(自身を含む): 28737696384

約数和(自身を除く): 7247584859

約数列:

[1, 5, 23, 25, 37, 115, 163, 185, 575, 815, 851, 925, 3749, 4075, 4255, 6031, 6197, 18745, 21275, 30155, 30985, 93725, 138713, 142531, 150775, 154925, 229289, 693565, 712655, 1010111, 1146445, 3467825, 3563275, 5050555, 5273647, 5732225, 23232553, 25252775, 26368235, 37374107, 116162765, 131841175, 186870535, 580813825, 859604461, 934352675, 4298022305, 21490111525]

約数ペア:

[(1, 21490111525), (5, 4298022305), (23, 934352675), (25, 859604461), (37, 580813825), (115, 186870535), (163, 131841175), (185, 116162765), (575, 37374107), (815, 26368235), (851, 25252775), (925, 23232553), (3749, 5732225), (4075, 5273647), (4255, 5050555), (6031, 3563275), (6197, 3467825), (18745, 1146445), (21275, 1010111), (30155, 712655), (30985, 693565), (93725, 229289), (138713, 154925), (142531, 150775)]