20856641

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 23314368

約数和(自身を除く): 2457727

約数列:

[1, 13, 37, 131, 331, 481, 1703, 4303, 4847, 12247, 43361, 63011, 159211, 563693, 1604357, 20856641]

約数ペア:

[(1, 20856641), (13, 1604357), (37, 563693), (131, 159211), (331, 63011), (481, 43361), (1703, 12247), (4303, 4847)]