81391948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{43019}}^1$

素因数の和:43077

約数の個数: 24

約数和(自身を含む): 159001920

約数和(自身を除く): 77609972

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 43019, 86038, 172076, 473209, 946418, 1849817, 1892836, 3699634, 7399268, 20347987, 40695974, 81391948]

約数ペア:

[(1, 81391948), (2, 40695974), (4, 20347987), (11, 7399268), (22, 3699634), (43, 1892836), (44, 1849817), (86, 946418), (172, 473209), (473, 172076), (946, 86038), (1892, 43019)]