20528040561

素因数分解:

$3^1\times 7^1\times {\mathrm{1579}}^1\times {\mathrm{619079}}^1$

素因数の和:620668

約数の個数: 16

約数和(自身を含む): 31300684800

約数和(自身を除く): 10772644239

約数列:

[1, 3, 7, 21, 1579, 4737, 11053, 33159, 619079, 1857237, 4333553, 13000659, 977525741, 2932577223, 6842680187, 20528040561]

約数ペア:

[(1, 20528040561), (3, 6842680187), (7, 2932577223), (21, 977525741), (1579, 13000659), (4737, 4333553), (11053, 1857237), (33159, 619079)]