27788943

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 45997056

約数和(自身を除く): 18208113

約数列:

[1, 3, 7, 13, 21, 39, 91, 137, 273, 411, 743, 959, 1781, 2229, 2877, 5201, 5343, 9659, 12467, 15603, 28977, 37401, 67613, 101791, 202839, 305373, 712537, 1323283, 2137611, 3969849, 9262981, 27788943]

約数ペア:

[(1, 27788943), (3, 9262981), (7, 3969849), (13, 2137611), (21, 1323283), (39, 712537), (91, 305373), (137, 202839), (273, 101791), (411, 67613), (743, 37401), (959, 28977), (1781, 15603), (2229, 12467), (2877, 9659), (5201, 5343)]