20001309

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 27287040

約数和(自身を除く): 7285731

約数列:

[1, 3, 67, 151, 201, 453, 659, 1977, 10117, 30351, 44153, 99509, 132459, 298527, 6667103, 20001309]

約数ペア:

[(1, 20001309), (3, 6667103), (67, 298527), (151, 132459), (201, 99509), (453, 44153), (659, 30351), (1977, 10117)]