21376386

素因数分解:

$2^1\times 3^4\times {\mathrm{127}}^1\times {\mathrm{1039}}^1$

素因数の和:1180

約数の個数: 40

約数和(自身を含む): 48322560

約数和(自身を除く): 26946174

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 127, 162, 254, 381, 762, 1039, 1143, 2078, 2286, 3117, 3429, 6234, 6858, 9351, 10287, 18702, 20574, 28053, 56106, 84159, 131953, 168318, 263906, 395859, 791718, 1187577, 2375154, 3562731, 7125462, 10688193, 21376386]

約数ペア:

[(1, 21376386), (2, 10688193), (3, 7125462), (6, 3562731), (9, 2375154), (18, 1187577), (27, 791718), (54, 395859), (81, 263906), (127, 168318), (162, 131953), (254, 84159), (381, 56106), (762, 28053), (1039, 20574), (1143, 18702), (2078, 10287), (2286, 9351), (3117, 6858), (3429, 6234)]