81236554

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{187181}}^1$

素因数の和:187221

約数の個数: 16

約数和(自身を含む): 143755776

約数和(自身を除く): 62519222

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 187181, 374362, 1310267, 2620534, 5802611, 11605222, 40618277, 81236554]

約数ペア:

[(1, 81236554), (2, 40618277), (7, 11605222), (14, 5802611), (31, 2620534), (62, 1310267), (217, 374362), (434, 187181)]