21218646490

素因数分解:

$2^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1301}}^1\times {\mathrm{8539}}^1$

素因数の和:10038

約数の個数: 32

約数和(自身を含む): 38427540480

約数和(自身を除く): 17208893990

約数列:

[1, 2, 5, 10, 191, 382, 955, 1301, 1910, 2602, 6505, 8539, 13010, 17078, 42695, 85390, 248491, 496982, 1242455, 1630949, 2484910, 3261898, 8154745, 11109239, 16309490, 22218478, 55546195, 111092390, 2121864649, 4243729298, 10609323245, 21218646490]

約数ペア:

[(1, 21218646490), (2, 10609323245), (5, 4243729298), (10, 2121864649), (191, 111092390), (382, 55546195), (955, 22218478), (1301, 16309490), (1910, 11109239), (2602, 8154745), (6505, 3261898), (8539, 2484910), (13010, 1630949), (17078, 1242455), (42695, 496982), (85390, 248491)]