21326280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4133}}^1$

素因数の和:4190

約数の個数: 64

約数和(自身を含む): 65482560

約数和(自身を除く): 44156280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4133, 5160, 8266, 12399, 16532, 20665, 24798, 33064, 41330, 49596, 61995, 82660, 99192, 123990, 165320, 177719, 247980, 355438, 495960, 533157, 710876, 888595, 1066314, 1421752, 1777190, 2132628, 2665785, 3554380, 4265256, 5331570, 7108760, 10663140, 21326280]

約数ペア:

[(1, 21326280), (2, 10663140), (3, 7108760), (4, 5331570), (5, 4265256), (6, 3554380), (8, 2665785), (10, 2132628), (12, 1777190), (15, 1421752), (20, 1066314), (24, 888595), (30, 710876), (40, 533157), (43, 495960), (60, 355438), (86, 247980), (120, 177719), (129, 165320), (172, 123990), (215, 99192), (258, 82660), (344, 61995), (430, 49596), (516, 41330), (645, 33064), (860, 24798), (1032, 20665), (1290, 16532), (1720, 12399), (2580, 8266), (4133, 5160)]