20758988

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 37094400

約数和(自身を除く): 16335412

約数列:

[1, 2, 4, 79, 158, 179, 316, 358, 367, 716, 734, 1468, 14141, 28282, 28993, 56564, 57986, 65693, 115972, 131386, 262772, 5189747, 10379494, 20758988]

約数ペア:

[(1, 20758988), (2, 10379494), (4, 5189747), (79, 262772), (158, 131386), (179, 115972), (316, 65693), (358, 57986), (367, 56564), (716, 28993), (734, 28282), (1468, 14141)]