21564335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{919}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 29443680

約数和(自身を除く): 7879345

約数列:

[1, 5, 13, 19, 65, 95, 247, 361, 919, 1235, 1805, 4595, 4693, 11947, 17461, 23465, 59735, 87305, 226993, 331759, 1134965, 1658795, 4312867, 21564335]

約数ペア:

[(1, 21564335), (5, 4312867), (13, 1658795), (19, 1134965), (65, 331759), (95, 226993), (247, 87305), (361, 59735), (919, 23465), (1235, 17461), (1805, 11947), (4595, 4693)]