20928990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{2381}}^1$

素因数の和:2684

約数の個数: 32

約数和(自身を含む): 50422176

約数和(自身を除く): 29493186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 293, 586, 879, 1465, 1758, 2381, 2930, 4395, 4762, 7143, 8790, 11905, 14286, 23810, 35715, 71430, 697633, 1395266, 2092899, 3488165, 4185798, 6976330, 10464495, 20928990]

約数ペア:

[(1, 20928990), (2, 10464495), (3, 6976330), (5, 4185798), (6, 3488165), (10, 2092899), (15, 1395266), (30, 697633), (293, 71430), (586, 35715), (879, 23810), (1465, 14286), (1758, 11905), (2381, 8790), (2930, 7143), (4395, 4762)]