280371

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 468480

約数和(自身を除く): 188109

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 169, 237, 273, 507, 553, 1027, 1183, 1659, 3081, 3549, 7189, 13351, 21567, 40053, 93457, 280371]

約数ペア:

[(1, 280371), (3, 93457), (7, 40053), (13, 21567), (21, 13351), (39, 7189), (79, 3549), (91, 3081), (169, 1659), (237, 1183), (273, 1027), (507, 553)]