21050760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{607}}^1$

素因数の和:655

約数の個数: 96

約数和(自身を含む): 67196160

約数和(自身を除く): 46145400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 289, 340, 408, 510, 578, 607, 680, 867, 1020, 1156, 1214, 1445, 1734, 1821, 2040, 2312, 2428, 2890, 3035, 3468, 3642, 4335, 4856, 5780, 6070, 6936, 7284, 8670, 9105, 10319, 11560, 12140, 14568, 17340, 18210, 20638, 24280, 30957, 34680, 36420, 41276, 51595, 61914, 72840, 82552, 103190, 123828, 154785, 175423, 206380, 247656, 309570, 350846, 412760, 526269, 619140, 701692, 877115, 1052538, 1238280, 1403384, 1754230, 2105076, 2631345, 3508460, 4210152, 5262690, 7016920, 10525380, 21050760]

約数ペア:

[(1, 21050760), (2, 10525380), (3, 7016920), (4, 5262690), (5, 4210152), (6, 3508460), (8, 2631345), (10, 2105076), (12, 1754230), (15, 1403384), (17, 1238280), (20, 1052538), (24, 877115), (30, 701692), (34, 619140), (40, 526269), (51, 412760), (60, 350846), (68, 309570), (85, 247656), (102, 206380), (120, 175423), (136, 154785), (170, 123828), (204, 103190), (255, 82552), (289, 72840), (340, 61914), (408, 51595), (510, 41276), (578, 36420), (607, 34680), (680, 30957), (867, 24280), (1020, 20638), (1156, 18210), (1214, 17340), (1445, 14568), (1734, 12140), (1821, 11560), (2040, 10319), (2312, 9105), (2428, 8670), (2890, 7284), (3035, 6936), (3468, 6070), (3642, 5780), (4335, 4856)]