21261900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:424

約数の個数: 144

約数和(自身を含む): 71245440

約数和(自身を除く): 49983540

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 25, 30, 33, 34, 44, 50, 51, 55, 60, 66, 68, 75, 85, 100, 102, 110, 132, 150, 165, 170, 187, 204, 220, 255, 275, 300, 330, 340, 374, 379, 425, 510, 550, 561, 660, 748, 758, 825, 850, 935, 1020, 1100, 1122, 1137, 1275, 1516, 1650, 1700, 1870, 1895, 2244, 2274, 2550, 2805, 3300, 3740, 3790, 4169, 4548, 4675, 5100, 5610, 5685, 6443, 7580, 8338, 9350, 9475, 11220, 11370, 12507, 12886, 14025, 16676, 18700, 18950, 19329, 20845, 22740, 25014, 25772, 28050, 28425, 32215, 37900, 38658, 41690, 50028, 56100, 56850, 62535, 64430, 70873, 77316, 83380, 96645, 104225, 113700, 125070, 128860, 141746, 161075, 193290, 208450, 212619, 250140, 283492, 312675, 322150, 354365, 386580, 416900, 425238, 483225, 625350, 644300, 708730, 850476, 966450, 1063095, 1250700, 1417460, 1771825, 1932900, 2126190, 3543650, 4252380, 5315475, 7087300, 10630950, 21261900]

約数ペア:

[(1, 21261900), (2, 10630950), (3, 7087300), (4, 5315475), (5, 4252380), (6, 3543650), (10, 2126190), (11, 1932900), (12, 1771825), (15, 1417460), (17, 1250700), (20, 1063095), (22, 966450), (25, 850476), (30, 708730), (33, 644300), (34, 625350), (44, 483225), (50, 425238), (51, 416900), (55, 386580), (60, 354365), (66, 322150), (68, 312675), (75, 283492), (85, 250140), (100, 212619), (102, 208450), (110, 193290), (132, 161075), (150, 141746), (165, 128860), (170, 125070), (187, 113700), (204, 104225), (220, 96645), (255, 83380), (275, 77316), (300, 70873), (330, 64430), (340, 62535), (374, 56850), (379, 56100), (425, 50028), (510, 41690), (550, 38658), (561, 37900), (660, 32215), (748, 28425), (758, 28050), (825, 25772), (850, 25014), (935, 22740), (1020, 20845), (1100, 19329), (1122, 18950), (1137, 18700), (1275, 16676), (1516, 14025), (1650, 12886), (1700, 12507), (1870, 11370), (1895, 11220), (2244, 9475), (2274, 9350), (2550, 8338), (2805, 7580), (3300, 6443), (3740, 5685), (3790, 5610), (4169, 5100), (4548, 4675)]