18885687

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 25656672

約数和(自身を除く): 6770985

約数列:

[1, 3, 101, 157, 303, 397, 471, 1191, 15857, 40097, 47571, 62329, 120291, 186987, 6295229, 18885687]

約数ペア:

[(1, 18885687), (3, 6295229), (101, 186987), (157, 120291), (303, 62329), (397, 47571), (471, 40097), (1191, 15857)]