21361020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{673}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 62617296

約数和(自身を除く): 41256276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 529, 673, 690, 1058, 1346, 1380, 1587, 2019, 2116, 2645, 2692, 3174, 3365, 4038, 5290, 6348, 6730, 7935, 8076, 10095, 10580, 13460, 15479, 15870, 20190, 30958, 31740, 40380, 46437, 61916, 77395, 92874, 154790, 185748, 232185, 309580, 356017, 464370, 712034, 928740, 1068051, 1424068, 1780085, 2136102, 3560170, 4272204, 5340255, 7120340, 10680510, 21361020]

約数ペア:

[(1, 21361020), (2, 10680510), (3, 7120340), (4, 5340255), (5, 4272204), (6, 3560170), (10, 2136102), (12, 1780085), (15, 1424068), (20, 1068051), (23, 928740), (30, 712034), (46, 464370), (60, 356017), (69, 309580), (92, 232185), (115, 185748), (138, 154790), (230, 92874), (276, 77395), (345, 61916), (460, 46437), (529, 40380), (673, 31740), (690, 30958), (1058, 20190), (1346, 15870), (1380, 15479), (1587, 13460), (2019, 10580), (2116, 10095), (2645, 8076), (2692, 7935), (3174, 6730), (3365, 6348), (4038, 5290)]