18804900951

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{21937}}^1$

素因数の和:22525

約数の個数: 40

約数和(自身を含む): 29624197680

約数和(自身を除く): 10819296729

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 557, 1539, 1671, 5013, 10583, 15039, 21937, 31749, 45117, 65811, 95247, 197433, 285741, 416803, 592299, 857223, 1250409, 1776897, 3751227, 11253681, 12218909, 33761043, 36656727, 109970181, 232159271, 329910543, 696477813, 989731629, 2089433439, 6268300317, 18804900951]

約数ペア:

[(1, 18804900951), (3, 6268300317), (9, 2089433439), (19, 989731629), (27, 696477813), (57, 329910543), (81, 232159271), (171, 109970181), (513, 36656727), (557, 33761043), (1539, 12218909), (1671, 11253681), (5013, 3751227), (10583, 1776897), (15039, 1250409), (21937, 857223), (31749, 592299), (45117, 416803), (65811, 285741), (95247, 197433)]