18829209

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1151}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 12136551

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1151, 2337, 3453, 5453, 8057, 16359, 21869, 24171, 47191, 65607, 141573, 153083, 330337, 459249, 896629, 991011, 2689887, 6276403, 18829209]

約数ペア:

[(1, 18829209), (3, 6276403), (7, 2689887), (19, 991011), (21, 896629), (41, 459249), (57, 330337), (123, 153083), (133, 141573), (287, 65607), (399, 47191), (779, 24171), (861, 21869), (1151, 16359), (2337, 8057), (3453, 5453)]