21589165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{8101}}^1$

素因数の和:8160

約数の個数: 16

約数和(自身を含む): 28583856

約数和(自身を除く): 6994691

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 8101, 40505, 105313, 332141, 526565, 1660705, 4317833, 21589165]

約数ペア:

[(1, 21589165), (5, 4317833), (13, 1660705), (41, 526565), (65, 332141), (205, 105313), (533, 40505), (2665, 8101)]