21207300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{223}}^1\times {\mathrm{317}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 61829376

約数和(自身を除く): 40622076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 223, 300, 317, 446, 634, 669, 892, 951, 1115, 1268, 1338, 1585, 1902, 2230, 2676, 3170, 3345, 3804, 4460, 4755, 5575, 6340, 6690, 7925, 9510, 11150, 13380, 15850, 16725, 19020, 22300, 23775, 31700, 33450, 47550, 66900, 70691, 95100, 141382, 212073, 282764, 353455, 424146, 706910, 848292, 1060365, 1413820, 1767275, 2120730, 3534550, 4241460, 5301825, 7069100, 10603650, 21207300]

約数ペア:

[(1, 21207300), (2, 10603650), (3, 7069100), (4, 5301825), (5, 4241460), (6, 3534550), (10, 2120730), (12, 1767275), (15, 1413820), (20, 1060365), (25, 848292), (30, 706910), (50, 424146), (60, 353455), (75, 282764), (100, 212073), (150, 141382), (223, 95100), (300, 70691), (317, 66900), (446, 47550), (634, 33450), (669, 31700), (892, 23775), (951, 22300), (1115, 19020), (1268, 16725), (1338, 15850), (1585, 13380), (1902, 11150), (2230, 9510), (2676, 7925), (3170, 6690), (3345, 6340), (3804, 5575), (4460, 4755)]