21254170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2687}}^1$

素因数の和:2814

約数の個数: 32

約数和(自身を含む): 44126208

約数和(自身を除く): 22872038

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 113, 226, 565, 791, 1130, 1582, 2687, 3955, 5374, 7910, 13435, 18809, 26870, 37618, 94045, 188090, 303631, 607262, 1518155, 2125417, 3036310, 4250834, 10627085, 21254170]

約数ペア:

[(1, 21254170), (2, 10627085), (5, 4250834), (7, 3036310), (10, 2125417), (14, 1518155), (35, 607262), (70, 303631), (113, 188090), (226, 94045), (565, 37618), (791, 26870), (1130, 18809), (1582, 13435), (2687, 7910), (3955, 5374)]