18435213

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 11441907

約数列:

[1, 3, 9, 23, 29, 37, 69, 83, 87, 111, 207, 249, 261, 333, 667, 747, 851, 1073, 1909, 2001, 2407, 2553, 3071, 3219, 5727, 6003, 7221, 7659, 9213, 9657, 17181, 21663, 24679, 27639, 55361, 70633, 74037, 89059, 166083, 211899, 222111, 267177, 498249, 635697, 801531, 2048357, 6145071, 18435213]

約数ペア:

[(1, 18435213), (3, 6145071), (9, 2048357), (23, 801531), (29, 635697), (37, 498249), (69, 267177), (83, 222111), (87, 211899), (111, 166083), (207, 89059), (249, 74037), (261, 70633), (333, 55361), (667, 27639), (747, 24679), (851, 21663), (1073, 17181), (1909, 9657), (2001, 9213), (2407, 7659), (2553, 7221), (3071, 6003), (3219, 5727)]