18104405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{67}}^1$

素因数の和:134

約数の個数: 32

約数和(自身を含む): 25557120

約数和(自身を除く): 7452715

約数列:

[1, 5, 11, 17, 55, 67, 85, 187, 289, 335, 737, 935, 1139, 1445, 3179, 3685, 4913, 5695, 12529, 15895, 19363, 24565, 54043, 62645, 96815, 212993, 270215, 329171, 1064965, 1645855, 3620881, 18104405]

約数ペア:

[(1, 18104405), (5, 3620881), (11, 1645855), (17, 1064965), (55, 329171), (67, 270215), (85, 212993), (187, 96815), (289, 62645), (335, 54043), (737, 24565), (935, 19363), (1139, 15895), (1445, 12529), (3179, 5695), (3685, 4913)]