21948505

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{661}}^1$

素因数の和:924

約数の個数: 16

約数和(自身を含む): 27406800

約数和(自身を除く): 5458295

約数列:

[1, 5, 29, 145, 229, 661, 1145, 3305, 6641, 19169, 33205, 95845, 151369, 756845, 4389701, 21948505]

約数ペア:

[(1, 21948505), (5, 4389701), (29, 756845), (145, 151369), (229, 95845), (661, 33205), (1145, 19169), (3305, 6641)]