21150250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7691}}^1$

素因数の和:7719

約数の個数: 32

約数和(自身を含む): 43198272

約数和(自身を除く): 22048022

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7691, 15382, 38455, 76910, 84601, 169202, 192275, 384550, 423005, 846010, 961375, 1922750, 2115025, 4230050, 10575125, 21150250]

約数ペア:

[(1, 21150250), (2, 10575125), (5, 4230050), (10, 2115025), (11, 1922750), (22, 961375), (25, 846010), (50, 423005), (55, 384550), (110, 192275), (125, 169202), (250, 84601), (275, 76910), (550, 38455), (1375, 15382), (2750, 7691)]