21669180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2137}}^1$

素因数の和:2175

約数の個数: 72

約数和(自身を含む): 65730672

約数和(自身を除く): 44061492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2137, 2535, 3380, 4274, 5070, 6411, 8548, 10140, 10685, 12822, 21370, 25644, 27781, 32055, 42740, 55562, 64110, 83343, 111124, 128220, 138905, 166686, 277810, 333372, 361153, 416715, 555620, 722306, 833430, 1083459, 1444612, 1666860, 1805765, 2166918, 3611530, 4333836, 5417295, 7223060, 10834590, 21669180]

約数ペア:

[(1, 21669180), (2, 10834590), (3, 7223060), (4, 5417295), (5, 4333836), (6, 3611530), (10, 2166918), (12, 1805765), (13, 1666860), (15, 1444612), (20, 1083459), (26, 833430), (30, 722306), (39, 555620), (52, 416715), (60, 361153), (65, 333372), (78, 277810), (130, 166686), (156, 138905), (169, 128220), (195, 111124), (260, 83343), (338, 64110), (390, 55562), (507, 42740), (676, 32055), (780, 27781), (845, 25644), (1014, 21370), (1690, 12822), (2028, 10685), (2137, 10140), (2535, 8548), (3380, 6411), (4274, 5070)]