18647037

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 29388800

約数和(自身を除く): 10741763

約数列:

[1, 3, 9, 19, 27, 57, 163, 171, 223, 489, 513, 669, 1467, 2007, 3097, 4237, 4401, 6021, 9291, 12711, 27873, 36349, 38133, 83619, 109047, 114399, 327141, 690631, 981423, 2071893, 6215679, 18647037]

約数ペア:

[(1, 18647037), (3, 6215679), (9, 2071893), (19, 981423), (27, 690631), (57, 327141), (163, 114399), (171, 109047), (223, 83619), (489, 38133), (513, 36349), (669, 27873), (1467, 12711), (2007, 9291), (3097, 6021), (4237, 4401)]