18405585

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 37088064

約数和(自身を除く): 18682479

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 103, 165, 171, 209, 285, 309, 361, 495, 515, 627, 855, 927, 1045, 1083, 1133, 1545, 1805, 1881, 1957, 3135, 3249, 3399, 3971, 4635, 5415, 5665, 5871, 9405, 9785, 10197, 11913, 16245, 16995, 17613, 19855, 21527, 29355, 35739, 37183, 50985, 59565, 64581, 88065, 107635, 111549, 178695, 185915, 193743, 322905, 334647, 409013, 557745, 968715, 1227039, 1673235, 2045065, 3681117, 6135195, 18405585]

約数ペア:

[(1, 18405585), (3, 6135195), (5, 3681117), (9, 2045065), (11, 1673235), (15, 1227039), (19, 968715), (33, 557745), (45, 409013), (55, 334647), (57, 322905), (95, 193743), (99, 185915), (103, 178695), (165, 111549), (171, 107635), (209, 88065), (285, 64581), (309, 59565), (361, 50985), (495, 37183), (515, 35739), (627, 29355), (855, 21527), (927, 19855), (1045, 17613), (1083, 16995), (1133, 16245), (1545, 11913), (1805, 10197), (1881, 9785), (1957, 9405), (3135, 5871), (3249, 5665), (3399, 5415), (3971, 4635)]