21492261

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3019}}^1$

素因数の和:3145

約数の個数: 24

約数和(自身を含む): 35805120

約数和(自身を除く): 14312859

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 3019, 7119, 9057, 21133, 27171, 63399, 190197, 341147, 1023441, 2388029, 3070323, 7164087, 21492261]

約数ペア:

[(1, 21492261), (3, 7164087), (7, 3070323), (9, 2388029), (21, 1023441), (63, 341147), (113, 190197), (339, 63399), (791, 27171), (1017, 21133), (2373, 9057), (3019, 7119)]