21256500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:442

約数の個数: 96

約数和(自身を含む): 63737856

約数和(自身を除く): 42481356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 37, 50, 60, 74, 75, 100, 111, 125, 148, 150, 185, 222, 250, 300, 370, 375, 383, 444, 500, 555, 740, 750, 766, 925, 1110, 1149, 1500, 1532, 1850, 1915, 2220, 2298, 2775, 3700, 3830, 4596, 4625, 5550, 5745, 7660, 9250, 9575, 11100, 11490, 13875, 14171, 18500, 19150, 22980, 27750, 28342, 28725, 38300, 42513, 47875, 55500, 56684, 57450, 70855, 85026, 95750, 114900, 141710, 143625, 170052, 191500, 212565, 283420, 287250, 354275, 425130, 574500, 708550, 850260, 1062825, 1417100, 1771375, 2125650, 3542750, 4251300, 5314125, 7085500, 10628250, 21256500]

約数ペア:

[(1, 21256500), (2, 10628250), (3, 7085500), (4, 5314125), (5, 4251300), (6, 3542750), (10, 2125650), (12, 1771375), (15, 1417100), (20, 1062825), (25, 850260), (30, 708550), (37, 574500), (50, 425130), (60, 354275), (74, 287250), (75, 283420), (100, 212565), (111, 191500), (125, 170052), (148, 143625), (150, 141710), (185, 114900), (222, 95750), (250, 85026), (300, 70855), (370, 57450), (375, 56684), (383, 55500), (444, 47875), (500, 42513), (555, 38300), (740, 28725), (750, 28342), (766, 27750), (925, 22980), (1110, 19150), (1149, 18500), (1500, 14171), (1532, 13875), (1850, 11490), (1915, 11100), (2220, 9575), (2298, 9250), (2775, 7660), (3700, 5745), (3830, 5550), (4596, 4625)]