18512115

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1051

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 12840717

約数列:

[1, 3, 5, 15, 31, 41, 93, 123, 155, 205, 465, 615, 971, 1271, 2913, 3813, 4855, 6355, 14565, 19065, 30101, 39811, 90303, 119433, 150505, 199055, 451515, 597165, 1234141, 3702423, 6170705, 18512115]

約数ペア:

[(1, 18512115), (3, 6170705), (5, 3702423), (15, 1234141), (31, 597165), (41, 451515), (93, 199055), (123, 150505), (155, 119433), (205, 90303), (465, 39811), (615, 30101), (971, 19065), (1271, 14565), (2913, 6355), (3813, 4855)]