31979538

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 72124416

約数和(自身を除く): 40144878

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 223, 257, 279, 446, 514, 558, 669, 771, 1338, 1542, 2007, 2313, 4014, 4626, 6913, 7967, 13826, 15934, 20739, 23901, 41478, 47802, 57311, 62217, 71703, 114622, 124434, 143406, 171933, 343866, 515799, 1031598, 1776641, 3553282, 5329923, 10659846, 15989769, 31979538]

約数ペア:

[(1, 31979538), (2, 15989769), (3, 10659846), (6, 5329923), (9, 3553282), (18, 1776641), (31, 1031598), (62, 515799), (93, 343866), (186, 171933), (223, 143406), (257, 124434), (279, 114622), (446, 71703), (514, 62217), (558, 57311), (669, 47802), (771, 41478), (1338, 23901), (1542, 20739), (2007, 15934), (2313, 13826), (4014, 7967), (4626, 6913)]