20387551

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 22435200

約数和(自身を除く): 2047649

約数列:

[1, 19, 29, 163, 227, 551, 3097, 4313, 4727, 6583, 37001, 89813, 125077, 703019, 1073029, 20387551]

約数ペア:

[(1, 20387551), (19, 1073029), (29, 703019), (163, 125077), (227, 89813), (551, 37001), (3097, 6583), (4313, 4727)]