21569816

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{72871}}^1$

素因数の和:72914

約数の個数: 16

約数和(自身を含む): 41537040

約数和(自身を除く): 19967224

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 72871, 145742, 291484, 582968, 2696227, 5392454, 10784908, 21569816]

約数ペア:

[(1, 21569816), (2, 10784908), (4, 5392454), (8, 2696227), (37, 582968), (74, 291484), (148, 145742), (296, 72871)]