21903926

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 37428480

約数和(自身を除く): 15524554

約数列:

[1, 2, 11, 22, 37, 71, 74, 142, 379, 407, 758, 781, 814, 1562, 2627, 4169, 5254, 8338, 14023, 26909, 28046, 28897, 53818, 57794, 154253, 295999, 308506, 591998, 995633, 1991266, 10951963, 21903926]

約数ペア:

[(1, 21903926), (2, 10951963), (11, 1991266), (22, 995633), (37, 591998), (71, 308506), (74, 295999), (142, 154253), (379, 57794), (407, 53818), (758, 28897), (781, 28046), (814, 26909), (1562, 14023), (2627, 8338), (4169, 5254)]