216221656

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{24593}}^1$

素因数の和:24763

約数の個数: 32

約数和(自身を含む): 466302240

約数和(自身を除く): 250080584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 4396, 8792, 24593, 49186, 98372, 172151, 196744, 344302, 688604, 1377208, 3861101, 7722202, 15444404, 27027707, 30888808, 54055414, 108110828, 216221656]

約数ペア:

[(1, 216221656), (2, 108110828), (4, 54055414), (7, 30888808), (8, 27027707), (14, 15444404), (28, 7722202), (56, 3861101), (157, 1377208), (314, 688604), (628, 344302), (1099, 196744), (1256, 172151), (2198, 98372), (4396, 49186), (8792, 24593)]