18872055

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3308

約数の個数: 32

約数和(自身を含む): 34341120

約数和(自身を除く): 15469065

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3251, 5805, 9753, 16255, 29259, 48765, 87777, 139793, 146295, 419379, 438885, 698965, 1258137, 2096895, 3774411, 6290685, 18872055]

約数ペア:

[(1, 18872055), (3, 6290685), (5, 3774411), (9, 2096895), (15, 1258137), (27, 698965), (43, 438885), (45, 419379), (129, 146295), (135, 139793), (215, 87777), (387, 48765), (645, 29259), (1161, 16255), (1935, 9753), (3251, 5805)]