207621765

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6959}}^1$

素因数の和:7003

約数の個数: 64

約数和(自身を含む): 420940800

約数和(自身を除く): 213319035

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 85, 117, 135, 153, 195, 221, 255, 351, 459, 585, 663, 765, 1105, 1755, 1989, 2295, 3315, 5967, 6959, 9945, 20877, 29835, 34795, 62631, 90467, 104385, 118303, 187893, 271401, 313155, 354909, 452335, 591515, 814203, 939465, 1064727, 1357005, 1537939, 1774545, 2442609, 3194181, 4071015, 4613817, 5323635, 7689695, 12213045, 13841451, 15970905, 23069085, 41524353, 69207255, 207621765]

約数ペア:

[(1, 207621765), (3, 69207255), (5, 41524353), (9, 23069085), (13, 15970905), (15, 13841451), (17, 12213045), (27, 7689695), (39, 5323635), (45, 4613817), (51, 4071015), (65, 3194181), (85, 2442609), (117, 1774545), (135, 1537939), (153, 1357005), (195, 1064727), (221, 939465), (255, 814203), (351, 591515), (459, 452335), (585, 354909), (663, 313155), (765, 271401), (1105, 187893), (1755, 118303), (1989, 104385), (2295, 90467), (3315, 62631), (5967, 34795), (6959, 29835), (9945, 20877)]