21069705

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23027}}^1$

素因数の和:23096

約数の個数: 16

約数和(自身を含む): 34265664

約数和(自身を除く): 13195959

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 23027, 69081, 115135, 345405, 1404647, 4213941, 7023235, 21069705]

約数ペア:

[(1, 21069705), (3, 7023235), (5, 4213941), (15, 1404647), (61, 345405), (183, 115135), (305, 69081), (915, 23027)]