31178901

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 20301675

約数列:

[1, 3, 13, 17, 31, 37, 39, 41, 51, 93, 111, 123, 221, 403, 481, 527, 533, 629, 663, 697, 1147, 1209, 1271, 1443, 1517, 1581, 1599, 1887, 2091, 3441, 3813, 4551, 6851, 8177, 9061, 14911, 16523, 19499, 19721, 20553, 21607, 24531, 25789, 27183, 44733, 47027, 49569, 58497, 59163, 64821, 77367, 141081, 253487, 280891, 335257, 611351, 760461, 799459, 842673, 1005771, 1834053, 2398377, 10392967, 31178901]

約数ペア:

[(1, 31178901), (3, 10392967), (13, 2398377), (17, 1834053), (31, 1005771), (37, 842673), (39, 799459), (41, 760461), (51, 611351), (93, 335257), (111, 280891), (123, 253487), (221, 141081), (403, 77367), (481, 64821), (527, 59163), (533, 58497), (629, 49569), (663, 47027), (697, 44733), (1147, 27183), (1209, 25789), (1271, 24531), (1443, 21607), (1517, 20553), (1581, 19721), (1599, 19499), (1887, 16523), (2091, 14911), (3441, 9061), (3813, 8177), (4551, 6851)]