20949465

素因数分解:

$3^1\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1697}}^1$

素因数の和:2528

約数の個数: 16

約数和(自身を含む): 33579648

約数和(自身を除く): 12630183

約数列:

[1, 3, 5, 15, 823, 1697, 2469, 4115, 5091, 8485, 12345, 25455, 1396631, 4189893, 6983155, 20949465]

約数ペア:

[(1, 20949465), (3, 6983155), (5, 4189893), (15, 1396631), (823, 25455), (1697, 12345), (2469, 8485), (4115, 5091)]