21709986

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{212843}}^1$

素因数の和:212865

約数の個数: 16

約数和(自身を含む): 45974304

約数和(自身を除く): 24264318

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 212843, 425686, 638529, 1277058, 3618331, 7236662, 10854993, 21709986]

約数ペア:

[(1, 21709986), (2, 10854993), (3, 7236662), (6, 3618331), (17, 1277058), (34, 638529), (51, 425686), (102, 212843)]