81091031

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 104064000

約数和(自身を除く): 22972969

約数列:

[1, 7, 19, 23, 49, 133, 161, 343, 437, 541, 931, 1127, 3059, 3787, 6517, 7889, 10279, 12443, 21413, 26509, 71953, 87101, 149891, 185563, 236417, 503671, 609707, 1654919, 3525697, 4267949, 11584433, 81091031]

約数ペア:

[(1, 81091031), (7, 11584433), (19, 4267949), (23, 3525697), (49, 1654919), (133, 609707), (161, 503671), (343, 236417), (437, 185563), (541, 149891), (931, 87101), (1127, 71953), (3059, 26509), (3787, 21413), (6517, 12443), (7889, 10279)]