20804966553

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{12540667}}^1$

素因数の和:12540756

約数の個数: 16

約数和(自身を含む): 32104110080

約数和(自身を除く): 11299143527

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 12540667, 37622001, 87784669, 263354007, 990712693, 2972138079, 6934988851, 20804966553]

約数ペア:

[(1, 20804966553), (3, 6934988851), (7, 2972138079), (21, 990712693), (79, 263354007), (237, 87784669), (553, 37622001), (1659, 12540667)]