20457551

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:326

約数の個数: 16

約数和(自身を含む): 21964800

約数和(自身を除く): 1507249

約数列:

[1, 31, 43, 103, 149, 1333, 3193, 4429, 4619, 6407, 15347, 137299, 198617, 475757, 659921, 20457551]

約数ペア:

[(1, 20457551), (31, 659921), (43, 475757), (103, 198617), (149, 137299), (1333, 15347), (3193, 6407), (4429, 4619)]