20638142

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77587}}^1$

素因数の和:77615

約数の個数: 16

約数和(自身を含む): 37242240

約数和(自身を除く): 16604098

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77587, 155174, 543109, 1086218, 1474153, 2948306, 10319071, 20638142]

約数ペア:

[(1, 20638142), (2, 10319071), (7, 2948306), (14, 1474153), (19, 1086218), (38, 543109), (133, 155174), (266, 77587)]