21912399

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2861}}^1$

素因数の和:2927

約数の個数: 24

約数和(自身を含む): 33931872

約数和(自身を除く): 12019473

約数列:

[1, 3, 9, 23, 37, 69, 111, 207, 333, 851, 2553, 2861, 7659, 8583, 25749, 65803, 105857, 197409, 317571, 592227, 952713, 2434711, 7304133, 21912399]

約数ペア:

[(1, 21912399), (3, 7304133), (9, 2434711), (23, 952713), (37, 592227), (69, 317571), (111, 197409), (207, 105857), (333, 65803), (851, 25749), (2553, 8583), (2861, 7659)]