21984180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8521}}^1$

素因数の和:8576

約数の個数: 48

約数和(自身を含む): 62994624

約数和(自身を除く): 41010444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8521, 17042, 25563, 34084, 42605, 51126, 85210, 102252, 127815, 170420, 255630, 366403, 511260, 732806, 1099209, 1465612, 1832015, 2198418, 3664030, 4396836, 5496045, 7328060, 10992090, 21984180]

約数ペア:

[(1, 21984180), (2, 10992090), (3, 7328060), (4, 5496045), (5, 4396836), (6, 3664030), (10, 2198418), (12, 1832015), (15, 1465612), (20, 1099209), (30, 732806), (43, 511260), (60, 366403), (86, 255630), (129, 170420), (172, 127815), (215, 102252), (258, 85210), (430, 51126), (516, 42605), (645, 34084), (860, 25563), (1290, 17042), (2580, 8521)]