20506087

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1901}}^1$

素因数の和:1998

約数の個数: 16

約数和(自身を含む): 24832512

約数和(自身を除く): 4326425

約数列:

[1, 7, 23, 67, 161, 469, 1541, 1901, 10787, 13307, 43723, 127367, 306061, 891569, 2929441, 20506087]

約数ペア:

[(1, 20506087), (7, 2929441), (23, 891569), (67, 306061), (161, 127367), (469, 43723), (1541, 13307), (1901, 10787)]