21876985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{8209}}^1$

素因数の和:8268

約数の個数: 16

約数和(自身を含む): 28964880

約数和(自身を除く): 7087895

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 8209, 41045, 106717, 336569, 533585, 1682845, 4375397, 21876985]

約数ペア:

[(1, 21876985), (5, 4375397), (13, 1682845), (41, 533585), (65, 336569), (205, 106717), (533, 41045), (2665, 8209)]