15997371

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 23365440

約数和(自身を除く): 7368069

約数列:

[1, 3, 13, 39, 139, 169, 227, 417, 507, 681, 1807, 2951, 5421, 8853, 23491, 31553, 38363, 70473, 94659, 115089, 410189, 1230567, 5332457, 15997371]

約数ペア:

[(1, 15997371), (3, 5332457), (13, 1230567), (39, 410189), (139, 115089), (169, 94659), (227, 70473), (417, 38363), (507, 31553), (681, 23491), (1807, 8853), (2951, 5421)]