21443500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3299}}^1$

素因数の和:3331

約数の個数: 48

約数和(自身を含む): 50450400

約数和(自身を除く): 29006900

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 3299, 6500, 6598, 13196, 16495, 32990, 42887, 65980, 82475, 85774, 164950, 171548, 214435, 329900, 412375, 428870, 824750, 857740, 1072175, 1649500, 2144350, 4288700, 5360875, 10721750, 21443500]

約数ペア:

[(1, 21443500), (2, 10721750), (4, 5360875), (5, 4288700), (10, 2144350), (13, 1649500), (20, 1072175), (25, 857740), (26, 824750), (50, 428870), (52, 412375), (65, 329900), (100, 214435), (125, 171548), (130, 164950), (250, 85774), (260, 82475), (325, 65980), (500, 42887), (650, 32990), (1300, 16495), (1625, 13196), (3250, 6598), (3299, 6500)]