212972518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{261637}}^1$

素因数の和:261687

約数の個数: 16

約数和(自身を含む): 357920784

約数和(自身を除く): 144948266

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 261637, 523274, 2878007, 5756014, 9680569, 19361138, 106486259, 212972518]

約数ペア:

[(1, 212972518), (2, 106486259), (11, 19361138), (22, 9680569), (37, 5756014), (74, 2878007), (407, 523274), (814, 261637)]