21490200

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11939}}^1$

素因数の和:11961

約数の個数: 72

約数和(自身を含む): 72177300

約数和(自身を除く): 50687100

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11939, 23878, 35817, 47756, 59695, 71634, 95512, 107451, 119390, 143268, 179085, 214902, 238780, 286536, 298475, 358170, 429804, 477560, 537255, 596950, 716340, 859608, 895425, 1074510, 1193900, 1432680, 1790850, 2149020, 2387800, 2686275, 3581700, 4298040, 5372550, 7163400, 10745100, 21490200]

約数ペア:

[(1, 21490200), (2, 10745100), (3, 7163400), (4, 5372550), (5, 4298040), (6, 3581700), (8, 2686275), (9, 2387800), (10, 2149020), (12, 1790850), (15, 1432680), (18, 1193900), (20, 1074510), (24, 895425), (25, 859608), (30, 716340), (36, 596950), (40, 537255), (45, 477560), (50, 429804), (60, 358170), (72, 298475), (75, 286536), (90, 238780), (100, 214902), (120, 179085), (150, 143268), (180, 119390), (200, 107451), (225, 95512), (300, 71634), (360, 59695), (450, 47756), (600, 35817), (900, 23878), (1800, 11939)]