18393615

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 35251200

約数和(自身を除く): 16857585

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 71, 95, 101, 135, 171, 213, 285, 303, 355, 505, 513, 639, 855, 909, 1065, 1349, 1515, 1917, 1919, 2565, 2727, 3195, 4047, 4545, 5757, 6745, 7171, 9585, 9595, 12141, 13635, 17271, 20235, 21513, 28785, 35855, 36423, 51813, 60705, 64539, 86355, 107565, 136249, 182115, 193617, 259065, 322695, 408747, 681245, 968085, 1226241, 2043735, 3678723, 6131205, 18393615]

約数ペア:

[(1, 18393615), (3, 6131205), (5, 3678723), (9, 2043735), (15, 1226241), (19, 968085), (27, 681245), (45, 408747), (57, 322695), (71, 259065), (95, 193617), (101, 182115), (135, 136249), (171, 107565), (213, 86355), (285, 64539), (303, 60705), (355, 51813), (505, 36423), (513, 35855), (639, 28785), (855, 21513), (909, 20235), (1065, 17271), (1349, 13635), (1515, 12141), (1917, 9595), (1919, 9585), (2565, 7171), (2727, 6745), (3195, 5757), (4047, 4545)]