21880428

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{379}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 54391680

約数和(自身を除く): 32511252

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 283, 379, 566, 758, 849, 1132, 1137, 1516, 1698, 2274, 3396, 4548, 4811, 6443, 9622, 12886, 14433, 19244, 19329, 25772, 28866, 38658, 57732, 77316, 107257, 214514, 321771, 429028, 643542, 1287084, 1823369, 3646738, 5470107, 7293476, 10940214, 21880428]

約数ペア:

[(1, 21880428), (2, 10940214), (3, 7293476), (4, 5470107), (6, 3646738), (12, 1823369), (17, 1287084), (34, 643542), (51, 429028), (68, 321771), (102, 214514), (204, 107257), (283, 77316), (379, 57732), (566, 38658), (758, 28866), (849, 25772), (1132, 19329), (1137, 19244), (1516, 14433), (1698, 12886), (2274, 9622), (3396, 6443), (4548, 4811)]