18581199

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2347}}^1$

素因数の和:2399

約数の個数: 32

約数和(自身を含む): 31557120

約数和(自身を除く): 12975921

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2347, 2639, 7041, 7917, 16429, 30511, 49287, 68063, 91533, 204189, 213577, 476441, 640731, 884819, 1429323, 2654457, 6193733, 18581199]

約数ペア:

[(1, 18581199), (3, 6193733), (7, 2654457), (13, 1429323), (21, 884819), (29, 640731), (39, 476441), (87, 213577), (91, 204189), (203, 91533), (273, 68063), (377, 49287), (609, 30511), (1131, 16429), (2347, 7917), (2639, 7041)]