21791850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1255

約数の個数: 48

約数和(自身を含む): 54505440

約数和(自身を除く): 32713590

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 131, 150, 262, 393, 655, 786, 1109, 1310, 1965, 2218, 3275, 3327, 3930, 5545, 6550, 6654, 9825, 11090, 16635, 19650, 27725, 33270, 55450, 83175, 145279, 166350, 290558, 435837, 726395, 871674, 1452790, 2179185, 3631975, 4358370, 7263950, 10895925, 21791850]

約数ペア:

[(1, 21791850), (2, 10895925), (3, 7263950), (5, 4358370), (6, 3631975), (10, 2179185), (15, 1452790), (25, 871674), (30, 726395), (50, 435837), (75, 290558), (131, 166350), (150, 145279), (262, 83175), (393, 55450), (655, 33270), (786, 27725), (1109, 19650), (1310, 16635), (1965, 11090), (2218, 9825), (3275, 6654), (3327, 6550), (3930, 5545)]