21298021250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1548947}}^1$

素因数の和:1548980

約数の個数: 40

約数和(自身を含む): 43550221968

約数和(自身を除く): 22252200718

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 625, 1250, 1375, 2750, 6875, 13750, 1548947, 3097894, 7744735, 15489470, 17038417, 34076834, 38723675, 77447350, 85192085, 170384170, 193618375, 387236750, 425960425, 851920850, 968091875, 1936183750, 2129802125, 4259604250, 10649010625, 21298021250]

約数ペア:

[(1, 21298021250), (2, 10649010625), (5, 4259604250), (10, 2129802125), (11, 1936183750), (22, 968091875), (25, 851920850), (50, 425960425), (55, 387236750), (110, 193618375), (125, 170384170), (250, 85192085), (275, 77447350), (550, 38723675), (625, 34076834), (1250, 17038417), (1375, 15489470), (2750, 7744735), (6875, 3097894), (13750, 1548947)]