217804972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{707159}}^1$

素因数の和:707181

約数の個数: 24

約数和(自身を含む): 475211520

約数和(自身を除く): 257406548

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 707159, 1414318, 2828636, 4950113, 7778749, 9900226, 15557498, 19800452, 31114996, 54451243, 108902486, 217804972]

約数ペア:

[(1, 217804972), (2, 108902486), (4, 54451243), (7, 31114996), (11, 19800452), (14, 15557498), (22, 9900226), (28, 7778749), (44, 4950113), (77, 2828636), (154, 1414318), (308, 707159)]