221969137575

素因数分解:

$3^1\times 5^2\times {\mathrm{661}}^1\times {\mathrm{4477441}}^1$

素因数の和:4478115

約数の個数: 24

約数和(自身を含む): 367544258896

約数和(自身を除く): 145575121321

約数列:

[1, 3, 5, 15, 25, 75, 661, 1983, 3305, 9915, 16525, 49575, 4477441, 13432323, 22387205, 67161615, 111936025, 335808075, 2959588501, 8878765503, 14797942505, 44393827515, 73989712525, 221969137575]

約数ペア:

[(1, 221969137575), (3, 73989712525), (5, 44393827515), (15, 14797942505), (25, 8878765503), (75, 2959588501), (661, 335808075), (1983, 111936025), (3305, 67161615), (9915, 22387205), (16525, 13432323), (49575, 4477441)]