20874903

素因数分解:

$3^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{1747}}^1$

素因数の和:2326

約数の個数: 16

約数和(自身を含む): 31883520

約数和(自身を除く): 11008617

約数列:

[1, 3, 7, 21, 569, 1707, 1747, 3983, 5241, 11949, 12229, 36687, 994043, 2982129, 6958301, 20874903]

約数ペア:

[(1, 20874903), (3, 6958301), (7, 2982129), (21, 994043), (569, 36687), (1707, 12229), (1747, 11949), (3983, 5241)]