18658107

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 60

約数和(自身を含む): 31885920

約数和(自身を除く): 13227813

約数列:

[1, 3, 9, 13, 27, 29, 39, 47, 81, 87, 117, 141, 169, 261, 351, 377, 423, 507, 611, 783, 1053, 1131, 1269, 1363, 1521, 1833, 2349, 3393, 3807, 4089, 4563, 4901, 5499, 7943, 10179, 12267, 13689, 14703, 16497, 17719, 23829, 30537, 36801, 44109, 49491, 53157, 71487, 110403, 132327, 159471, 214461, 230347, 396981, 478413, 643383, 691041, 1435239, 2073123, 6219369, 18658107]

約数ペア:

[(1, 18658107), (3, 6219369), (9, 2073123), (13, 1435239), (27, 691041), (29, 643383), (39, 478413), (47, 396981), (81, 230347), (87, 214461), (117, 159471), (141, 132327), (169, 110403), (261, 71487), (351, 53157), (377, 49491), (423, 44109), (507, 36801), (611, 30537), (783, 23829), (1053, 17719), (1131, 16497), (1269, 14703), (1363, 13689), (1521, 12267), (1833, 10179), (2349, 7943), (3393, 5499), (3807, 4901), (4089, 4563)]