217699521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{13259}}^1$

素因数の和:13696

約数の個数: 16

約数和(自身を含む): 313360320

約数和(自身を除く): 95660799

約数列:

[1, 3, 13, 39, 421, 1263, 5473, 13259, 16419, 39777, 172367, 517101, 5582039, 16746117, 72566507, 217699521]

約数ペア:

[(1, 217699521), (3, 72566507), (13, 16746117), (39, 5582039), (421, 517101), (1263, 172367), (5473, 39777), (13259, 16419)]