228712253

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 319127040

約数和(自身を除く): 90414787

約数列:

[1, 7, 11, 19, 23, 49, 77, 133, 161, 209, 253, 437, 539, 931, 971, 1127, 1463, 1771, 3059, 4807, 6797, 10241, 10681, 12397, 18449, 21413, 22333, 33649, 47579, 74767, 129143, 156331, 202939, 235543, 245663, 424327, 523369, 904001, 1094317, 1420573, 1719641, 2970289, 4667597, 9944011, 12037487, 20792023, 32673179, 228712253]

約数ペア:

[(1, 228712253), (7, 32673179), (11, 20792023), (19, 12037487), (23, 9944011), (49, 4667597), (77, 2970289), (133, 1719641), (161, 1420573), (209, 1094317), (253, 904001), (437, 523369), (539, 424327), (931, 245663), (971, 235543), (1127, 202939), (1463, 156331), (1771, 129143), (3059, 74767), (4807, 47579), (6797, 33649), (10241, 22333), (10681, 21413), (12397, 18449)]