21497788165

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32327501}}^1$

素因数の和:32327532

約数の個数: 16

約数和(自身を含む): 31034401920

約数和(自身を除く): 9536613755

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 32327501, 161637505, 226292507, 614222519, 1131462535, 3071112595, 4299557633, 21497788165]

約数ペア:

[(1, 21497788165), (5, 4299557633), (7, 3071112595), (19, 1131462535), (35, 614222519), (95, 226292507), (133, 161637505), (665, 32327501)]