21233245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2591}}^1$

素因数の和:2756

約数の個数: 16

約数和(自身を含む): 27993600

約数和(自身を除く): 6760355

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2591, 8195, 12955, 28501, 142505, 386059, 1930295, 4246649, 21233245]

約数ペア:

[(1, 21233245), (5, 4246649), (11, 1930295), (55, 386059), (149, 142505), (745, 28501), (1639, 12955), (2591, 8195)]