388633581

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{324673}}^1$

素因数の和:324705

約数の個数: 24

約数和(自身を含む): 675321920

約数和(自身を除く): 286688339

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 324673, 974019, 2272711, 2922057, 6168787, 6818133, 18506361, 20454399, 43181509, 55519083, 129544527, 388633581]

約数ペア:

[(1, 388633581), (3, 129544527), (7, 55519083), (9, 43181509), (19, 20454399), (21, 18506361), (57, 6818133), (63, 6168787), (133, 2922057), (171, 2272711), (399, 974019), (1197, 324673)]