212421215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 273839616

約数和(自身を除く): 61418401

約数列:

[1, 5, 23, 61, 107, 115, 283, 305, 535, 1403, 1415, 2461, 6509, 6527, 7015, 12305, 17263, 30281, 32545, 32635, 86315, 150121, 151405, 397049, 696463, 750605, 1847141, 1985245, 3482315, 9235705, 42484243, 212421215]

約数ペア:

[(1, 212421215), (5, 42484243), (23, 9235705), (61, 3482315), (107, 1985245), (115, 1847141), (283, 750605), (305, 696463), (535, 397049), (1403, 151405), (1415, 150121), (2461, 86315), (6509, 32635), (6527, 32545), (7015, 30281), (12305, 17263)]