18660543

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 12858177

約数列:

[1, 3, 11, 17, 29, 31, 33, 37, 51, 87, 93, 111, 187, 319, 341, 407, 493, 527, 561, 629, 899, 957, 1023, 1073, 1147, 1221, 1479, 1581, 1887, 2697, 3219, 3441, 5423, 5797, 6919, 9889, 11803, 12617, 15283, 16269, 17391, 18241, 19499, 20757, 29667, 33263, 35409, 37851, 45849, 54723, 58497, 99789, 168113, 200651, 214489, 365893, 504339, 565471, 601953, 643467, 1097679, 1696413, 6220181, 18660543]

約数ペア:

[(1, 18660543), (3, 6220181), (11, 1696413), (17, 1097679), (29, 643467), (31, 601953), (33, 565471), (37, 504339), (51, 365893), (87, 214489), (93, 200651), (111, 168113), (187, 99789), (319, 58497), (341, 54723), (407, 45849), (493, 37851), (527, 35409), (561, 33263), (629, 29667), (899, 20757), (957, 19499), (1023, 18241), (1073, 17391), (1147, 16269), (1221, 15283), (1479, 12617), (1581, 11803), (1887, 9889), (2697, 6919), (3219, 5797), (3441, 5423)]