20646654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25873}}^1$

素因数の和:25904

約数の個数: 32

約数和(自身を含む): 49678080

約数和(自身を除く): 29031426

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 25873, 51746, 77619, 155238, 181111, 362222, 491587, 543333, 983174, 1086666, 1474761, 2949522, 3441109, 6882218, 10323327, 20646654]

約数ペア:

[(1, 20646654), (2, 10323327), (3, 6882218), (6, 3441109), (7, 2949522), (14, 1474761), (19, 1086666), (21, 983174), (38, 543333), (42, 491587), (57, 362222), (114, 181111), (133, 155238), (266, 77619), (399, 51746), (798, 25873)]