212225517

素因数分解:

$3^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{3187}}^1$

素因数の和:3358

約数の個数: 36

約数和(自身を含む): 359070816

約数和(自身を除く): 146845299

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 151, 441, 453, 1057, 1359, 3171, 3187, 7399, 9513, 9561, 22197, 22309, 28683, 66591, 66927, 156163, 200781, 468489, 481237, 1405467, 1443711, 3368659, 4331133, 10105977, 23580613, 30317931, 70741839, 212225517]

約数ペア:

[(1, 212225517), (3, 70741839), (7, 30317931), (9, 23580613), (21, 10105977), (49, 4331133), (63, 3368659), (147, 1443711), (151, 1405467), (441, 481237), (453, 468489), (1057, 200781), (1359, 156163), (3171, 66927), (3187, 66591), (7399, 28683), (9513, 22309), (9561, 22197)]