15881385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3541}}^1$

素因数の和:3585

約数の個数: 32

約数和(自身を含む): 28562688

約数和(自身を除く): 12681303

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 3541, 4485, 10623, 17705, 46033, 53115, 81443, 138099, 230165, 244329, 407215, 690495, 1058759, 1221645, 3176277, 5293795, 15881385]

約数ペア:

[(1, 15881385), (3, 5293795), (5, 3176277), (13, 1221645), (15, 1058759), (23, 690495), (39, 407215), (65, 244329), (69, 230165), (115, 138099), (195, 81443), (299, 53115), (345, 46033), (897, 17705), (1495, 10623), (3541, 4485)]