18877383

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2749}}^1$

素因数の和:2871

約数の個数: 24

約数和(自身を含む): 31460000

約数和(自身を除く): 12582617

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2749, 6867, 8247, 19243, 24741, 57729, 173187, 299641, 898923, 2097487, 2696769, 6292461, 18877383]

約数ペア:

[(1, 18877383), (3, 6292461), (7, 2696769), (9, 2097487), (21, 898923), (63, 299641), (109, 173187), (327, 57729), (763, 24741), (981, 19243), (2289, 8247), (2749, 6867)]