251012457

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{1321}}^1$

素因数の和:1861

約数の個数: 24

約数和(自身を含む): 372042528

約数和(自身を除く): 121030071

約数列:

[1, 3, 9, 43, 129, 387, 491, 1321, 1473, 3963, 4419, 11889, 21113, 56803, 63339, 170409, 190017, 511227, 648611, 1945833, 5837499, 27890273, 83670819, 251012457]

約数ペア:

[(1, 251012457), (3, 83670819), (9, 27890273), (43, 5837499), (129, 1945833), (387, 648611), (491, 511227), (1321, 190017), (1473, 170409), (3963, 63339), (4419, 56803), (11889, 21113)]