21229470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1697}}^1$

素因数の和:1849

約数の個数: 48

約数和(自身を含む): 55626480

約数和(自身を除く): 34397010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139, 278, 417, 695, 834, 1251, 1390, 1697, 2085, 2502, 3394, 4170, 5091, 6255, 8485, 10182, 12510, 15273, 16970, 25455, 30546, 50910, 76365, 152730, 235883, 471766, 707649, 1179415, 1415298, 2122947, 2358830, 3538245, 4245894, 7076490, 10614735, 21229470]

約数ペア:

[(1, 21229470), (2, 10614735), (3, 7076490), (5, 4245894), (6, 3538245), (9, 2358830), (10, 2122947), (15, 1415298), (18, 1179415), (30, 707649), (45, 471766), (90, 235883), (139, 152730), (278, 76365), (417, 50910), (695, 30546), (834, 25455), (1251, 16970), (1390, 15273), (1697, 12510), (2085, 10182), (2502, 8485), (3394, 6255), (4170, 5091)]