31223213

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 40089600

約数和(自身を除く): 8866387

約数列:

[1, 7, 19, 23, 59, 133, 161, 173, 413, 437, 1121, 1211, 1357, 3059, 3287, 3979, 7847, 9499, 10207, 23009, 25783, 27853, 71449, 75601, 180481, 193933, 234761, 529207, 1357531, 1643327, 4460459, 31223213]

約数ペア:

[(1, 31223213), (7, 4460459), (19, 1643327), (23, 1357531), (59, 529207), (133, 234761), (161, 193933), (173, 180481), (413, 75601), (437, 71449), (1121, 27853), (1211, 25783), (1357, 23009), (3059, 10207), (3287, 9499), (3979, 7847)]