21840585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3613}}^1$

素因数の和:3665

約数の個数: 32

約数和(自身を含む): 38857728

約数和(自身を除く): 17017143

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3613, 6045, 10839, 18065, 46969, 54195, 112003, 140907, 234845, 336009, 560015, 704535, 1456039, 1680045, 4368117, 7280195, 21840585]

約数ペア:

[(1, 21840585), (3, 7280195), (5, 4368117), (13, 1680045), (15, 1456039), (31, 704535), (39, 560015), (65, 336009), (93, 234845), (155, 140907), (195, 112003), (403, 54195), (465, 46969), (1209, 18065), (2015, 10839), (3613, 6045)]