20377931

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2693}}^1$

素因数の和:2770

約数の個数: 16

約数和(自身を含む): 24827904

約数和(自身を除く): 4449973

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2693, 7567, 18851, 61939, 126571, 433573, 885997, 2911133, 20377931]

約数ペア:

[(1, 20377931), (7, 2911133), (23, 885997), (47, 433573), (161, 126571), (329, 61939), (1081, 18851), (2693, 7567)]