20493245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4549}}^1$

素因数の和:4624

約数の個数: 16

約数和(自身を含む): 26535600

約数和(自身を除く): 6042355

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 4549, 22745, 77333, 241097, 386665, 1205485, 4098649, 20493245]

約数ペア:

[(1, 20493245), (5, 4098649), (17, 1205485), (53, 386665), (85, 241097), (265, 77333), (901, 22745), (4505, 4549)]