21252180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2789}}^1$

素因数の和:2928

約数の個数: 48

約数和(自身を含む): 59996160

約数和(自身を除く): 38743980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2789, 3810, 5578, 7620, 8367, 11156, 13945, 16734, 27890, 33468, 41835, 55780, 83670, 167340, 354203, 708406, 1062609, 1416812, 1771015, 2125218, 3542030, 4250436, 5313045, 7084060, 10626090, 21252180]

約数ペア:

[(1, 21252180), (2, 10626090), (3, 7084060), (4, 5313045), (5, 4250436), (6, 3542030), (10, 2125218), (12, 1771015), (15, 1416812), (20, 1062609), (30, 708406), (60, 354203), (127, 167340), (254, 83670), (381, 55780), (508, 41835), (635, 33468), (762, 27890), (1270, 16734), (1524, 13945), (1905, 11156), (2540, 8367), (2789, 7620), (3810, 5578)]