21058310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 47440512

約数和(自身を除く): 26382202

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 73, 91, 130, 146, 182, 317, 365, 455, 511, 634, 730, 910, 949, 1022, 1585, 1898, 2219, 2555, 3170, 4121, 4438, 4745, 5110, 6643, 8242, 9490, 11095, 13286, 20605, 22190, 23141, 28847, 33215, 41210, 46282, 57694, 66430, 115705, 144235, 161987, 231410, 288470, 300833, 323974, 601666, 809935, 1504165, 1619870, 2105831, 3008330, 4211662, 10529155, 21058310]

約数ペア:

[(1, 21058310), (2, 10529155), (5, 4211662), (7, 3008330), (10, 2105831), (13, 1619870), (14, 1504165), (26, 809935), (35, 601666), (65, 323974), (70, 300833), (73, 288470), (91, 231410), (130, 161987), (146, 144235), (182, 115705), (317, 66430), (365, 57694), (455, 46282), (511, 41210), (634, 33215), (730, 28847), (910, 23141), (949, 22190), (1022, 20605), (1585, 13286), (1898, 11095), (2219, 9490), (2555, 8242), (3170, 6643), (4121, 5110), (4438, 4745)]