21210460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55817}}^1$

素因数の和:55845

約数の個数: 24

約数和(自身を含む): 46887120

約数和(自身を除く): 25676660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55817, 111634, 223268, 279085, 558170, 1060523, 1116340, 2121046, 4242092, 5302615, 10605230, 21210460]

約数ペア:

[(1, 21210460), (2, 10605230), (4, 5302615), (5, 4242092), (10, 2121046), (19, 1116340), (20, 1060523), (38, 558170), (76, 279085), (95, 223268), (190, 111634), (380, 55817)]