18786417

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 28396032

約数和(自身を除く): 9609615

約数列:

[1, 3, 13, 37, 39, 47, 111, 141, 277, 481, 611, 831, 1443, 1739, 1833, 3601, 5217, 10249, 10803, 13019, 22607, 30747, 39057, 67821, 133237, 169247, 399711, 481703, 507741, 1445109, 6262139, 18786417]

約数ペア:

[(1, 18786417), (3, 6262139), (13, 1445109), (37, 507741), (39, 481703), (47, 399711), (111, 169247), (141, 133237), (277, 67821), (481, 39057), (611, 30747), (831, 22607), (1443, 13019), (1739, 10803), (1833, 10249), (3601, 5217)]