20619942

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{490951}}^1$

素因数の和:490963

約数の個数: 16

約数和(自身を含む): 47131392

約数和(自身を除く): 26511450

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 490951, 981902, 1472853, 2945706, 3436657, 6873314, 10309971, 20619942]

約数ペア:

[(1, 20619942), (2, 10309971), (3, 6873314), (6, 3436657), (7, 2945706), (14, 1472853), (21, 981902), (42, 490951)]