18922761

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{29}}^1$

素因数の和:88

約数の個数: 64

約数和(自身を含む): 34272000

約数和(自身を除く): 15349239

約数列:

[1, 3, 9, 11, 13, 27, 29, 33, 39, 87, 99, 117, 143, 169, 261, 297, 319, 351, 377, 429, 507, 783, 957, 1131, 1287, 1521, 1859, 2197, 2871, 3393, 3861, 4147, 4563, 4901, 5577, 6591, 8613, 10179, 12441, 14703, 16731, 19773, 24167, 37323, 44109, 50193, 53911, 59319, 63713, 72501, 111969, 132327, 161733, 191139, 217503, 485199, 573417, 652509, 700843, 1455597, 1720251, 2102529, 6307587, 18922761]

約数ペア:

[(1, 18922761), (3, 6307587), (9, 2102529), (11, 1720251), (13, 1455597), (27, 700843), (29, 652509), (33, 573417), (39, 485199), (87, 217503), (99, 191139), (117, 161733), (143, 132327), (169, 111969), (261, 72501), (297, 63713), (319, 59319), (351, 53911), (377, 50193), (429, 44109), (507, 37323), (783, 24167), (957, 19773), (1131, 16731), (1287, 14703), (1521, 12441), (1859, 10179), (2197, 8613), (2871, 6591), (3393, 5577), (3861, 4901), (4147, 4563)]