69991831

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 91148288

約数和(自身を除く): 21156457

約数列:

[1, 7, 13, 31, 43, 91, 217, 301, 403, 559, 577, 1333, 2821, 3913, 4039, 7501, 9331, 17329, 17887, 24811, 52507, 121303, 125209, 173677, 232531, 322543, 769141, 1627717, 2257801, 5383987, 9998833, 69991831]

約数ペア:

[(1, 69991831), (7, 9998833), (13, 5383987), (31, 2257801), (43, 1627717), (91, 769141), (217, 322543), (301, 232531), (403, 173677), (559, 125209), (577, 121303), (1333, 52507), (2821, 24811), (3913, 17887), (4039, 17329), (7501, 9331)]