20531568

素因数分解:

$2^4\times 3^1\times {\mathrm{521}}^1\times {\mathrm{821}}^1$

素因数の和:1353

約数の個数: 40

約数和(自身を含む): 53206416

約数和(自身を除く): 32674848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 521, 821, 1042, 1563, 1642, 2084, 2463, 3126, 3284, 4168, 4926, 6252, 6568, 8336, 9852, 12504, 13136, 19704, 25008, 39408, 427741, 855482, 1283223, 1710964, 2566446, 3421928, 5132892, 6843856, 10265784, 20531568]

約数ペア:

[(1, 20531568), (2, 10265784), (3, 6843856), (4, 5132892), (6, 3421928), (8, 2566446), (12, 1710964), (16, 1283223), (24, 855482), (48, 427741), (521, 39408), (821, 25008), (1042, 19704), (1563, 13136), (1642, 12504), (2084, 9852), (2463, 8336), (3126, 6568), (3284, 6252), (4168, 4926)]