21893510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1889}}^1$

素因数の和:1976

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 20291290

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1889, 2318, 3778, 5795, 9445, 11590, 18890, 35891, 71782, 115229, 179455, 230458, 358910, 576145, 1152290, 2189351, 4378702, 10946755, 21893510]

約数ペア:

[(1, 21893510), (2, 10946755), (5, 4378702), (10, 2189351), (19, 1152290), (38, 576145), (61, 358910), (95, 230458), (122, 179455), (190, 115229), (305, 71782), (610, 35891), (1159, 18890), (1889, 11590), (2318, 9445), (3778, 5795)]