211231365

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{1433}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 350217216

約数和(自身を除く): 138985851

約数列:

[1, 3, 5, 15, 31, 93, 155, 317, 465, 951, 1433, 1585, 4299, 4755, 7165, 9827, 21495, 29481, 44423, 49135, 133269, 147405, 222115, 454261, 666345, 1362783, 2271305, 6813915, 14082091, 42246273, 70410455, 211231365]

約数ペア:

[(1, 211231365), (3, 70410455), (5, 42246273), (15, 14082091), (31, 6813915), (93, 2271305), (155, 1362783), (317, 666345), (465, 454261), (951, 222115), (1433, 147405), (1585, 133269), (4299, 49135), (4755, 44423), (7165, 29481), (9827, 21495)]