18786231

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1801}}^1$

素因数の和:1887

約数の個数: 24

約数和(自身を含む): 29048240

約数和(自身を除く): 10262009

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 1801, 3477, 5403, 10431, 16209, 34219, 102657, 109861, 307971, 329583, 988749, 2087359, 6262077, 18786231]

約数ペア:

[(1, 18786231), (3, 6262077), (9, 2087359), (19, 988749), (57, 329583), (61, 307971), (171, 109861), (183, 102657), (549, 34219), (1159, 16209), (1801, 10431), (3477, 5403)]