21107312895

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{186551}}^1$

素因数の和:186975

約数の個数: 32

約数和(自身を含む): 35638894080

約数和(自身を除く): 14531581185

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 397, 1191, 1985, 5955, 7543, 22629, 37715, 113145, 186551, 559653, 932755, 2798265, 3544469, 10633407, 17722345, 53167035, 74060747, 222182241, 370303735, 1110911205, 1407154193, 4221462579, 7035770965, 21107312895]

約数ペア:

[(1, 21107312895), (3, 7035770965), (5, 4221462579), (15, 1407154193), (19, 1110911205), (57, 370303735), (95, 222182241), (285, 74060747), (397, 53167035), (1191, 17722345), (1985, 10633407), (5955, 3544469), (7543, 2798265), (22629, 932755), (37715, 559653), (113145, 186551)]