21092500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1$

素因数の和:107

約数の個数: 120

約数和(自身を含む): 55107360

約数和(自身を除く): 34014860

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 59, 65, 100, 110, 118, 125, 130, 143, 220, 236, 250, 260, 275, 286, 295, 325, 500, 550, 572, 590, 625, 649, 650, 715, 767, 1100, 1180, 1250, 1298, 1300, 1375, 1430, 1475, 1534, 1625, 2500, 2596, 2750, 2860, 2950, 3068, 3245, 3250, 3575, 3835, 5500, 5900, 6490, 6500, 6875, 7150, 7375, 7670, 8125, 8437, 12980, 13750, 14300, 14750, 15340, 16225, 16250, 16874, 17875, 19175, 27500, 29500, 32450, 32500, 33748, 35750, 36875, 38350, 42185, 64900, 71500, 73750, 76700, 81125, 84370, 89375, 95875, 147500, 162250, 168740, 178750, 191750, 210925, 324500, 357500, 383500, 405625, 421850, 479375, 811250, 843700, 958750, 1054625, 1622500, 1917500, 2109250, 4218500, 5273125, 10546250, 21092500]

約数ペア:

[(1, 21092500), (2, 10546250), (4, 5273125), (5, 4218500), (10, 2109250), (11, 1917500), (13, 1622500), (20, 1054625), (22, 958750), (25, 843700), (26, 811250), (44, 479375), (50, 421850), (52, 405625), (55, 383500), (59, 357500), (65, 324500), (100, 210925), (110, 191750), (118, 178750), (125, 168740), (130, 162250), (143, 147500), (220, 95875), (236, 89375), (250, 84370), (260, 81125), (275, 76700), (286, 73750), (295, 71500), (325, 64900), (500, 42185), (550, 38350), (572, 36875), (590, 35750), (625, 33748), (649, 32500), (650, 32450), (715, 29500), (767, 27500), (1100, 19175), (1180, 17875), (1250, 16874), (1298, 16250), (1300, 16225), (1375, 15340), (1430, 14750), (1475, 14300), (1534, 13750), (1625, 12980), (2500, 8437), (2596, 8125), (2750, 7670), (2860, 7375), (2950, 7150), (3068, 6875), (3245, 6500), (3250, 6490), (3575, 5900), (3835, 5500)]