21228104

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156089}}^1$

素因数の和:156112

約数の個数: 16

約数和(自身を含む): 42144300

約数和(自身を除く): 20916196

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156089, 312178, 624356, 1248712, 2653513, 5307026, 10614052, 21228104]

約数ペア:

[(1, 21228104), (2, 10614052), (4, 5307026), (8, 2653513), (17, 1248712), (34, 624356), (68, 312178), (136, 156089)]