13261521

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1567}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 22478848

約数和(自身を除く): 9217327

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 1567, 2821, 4701, 8463, 10969, 20371, 32907, 48577, 61113, 142597, 145731, 340039, 427791, 631501, 1020117, 1894503, 4420507, 13261521]

約数ペア:

[(1, 13261521), (3, 4420507), (7, 1894503), (13, 1020117), (21, 631501), (31, 427791), (39, 340039), (91, 145731), (93, 142597), (217, 61113), (273, 48577), (403, 32907), (651, 20371), (1209, 10969), (1567, 8463), (2821, 4701)]