21009786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500233}}^1$

素因数の和:500245

約数の個数: 16

約数和(自身を含む): 48022464

約数和(自身を除く): 27012678

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500233, 1000466, 1500699, 3001398, 3501631, 7003262, 10504893, 21009786]

約数ペア:

[(1, 21009786), (2, 10504893), (3, 7003262), (6, 3501631), (7, 3001398), (14, 1500699), (21, 1000466), (42, 500233)]