21584380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 26799620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 719, 790, 1438, 1501, 1580, 2876, 3002, 3595, 6004, 7190, 7505, 13661, 14380, 15010, 27322, 30020, 54644, 56801, 68305, 113602, 136610, 227204, 273220, 284005, 568010, 1079219, 1136020, 2158438, 4316876, 5396095, 10792190, 21584380]

約数ペア:

[(1, 21584380), (2, 10792190), (4, 5396095), (5, 4316876), (10, 2158438), (19, 1136020), (20, 1079219), (38, 568010), (76, 284005), (79, 273220), (95, 227204), (158, 136610), (190, 113602), (316, 68305), (380, 56801), (395, 54644), (719, 30020), (790, 27322), (1438, 15010), (1501, 14380), (1580, 13661), (2876, 7505), (3002, 7190), (3595, 6004)]