21688694160

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12909937}}^1$

素因数の和:12909960

約数の個数: 80

約数和(自身を含む): 76839950976

約数和(自身を除く): 55151256816

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12909937, 25819874, 38729811, 51639748, 64549685, 77459622, 90369559, 103279496, 129099370, 154919244, 180739118, 193649055, 206558992, 258198740, 271108677, 309838488, 361478236, 387298110, 451847795, 516397480, 542217354, 619676976, 722956472, 774596220, 903695590, 1032794960, 1084434708, 1355543385, 1445912944, 1549192440, 1807391180, 2168869416, 2711086770, 3098384880, 3614782360, 4337738832, 5422173540, 7229564720, 10844347080, 21688694160]

約数ペア:

[(1, 21688694160), (2, 10844347080), (3, 7229564720), (4, 5422173540), (5, 4337738832), (6, 3614782360), (7, 3098384880), (8, 2711086770), (10, 2168869416), (12, 1807391180), (14, 1549192440), (15, 1445912944), (16, 1355543385), (20, 1084434708), (21, 1032794960), (24, 903695590), (28, 774596220), (30, 722956472), (35, 619676976), (40, 542217354), (42, 516397480), (48, 451847795), (56, 387298110), (60, 361478236), (70, 309838488), (80, 271108677), (84, 258198740), (105, 206558992), (112, 193649055), (120, 180739118), (140, 154919244), (168, 129099370), (210, 103279496), (240, 90369559), (280, 77459622), (336, 64549685), (420, 51639748), (560, 38729811), (840, 25819874), (1680, 12909937)]