217419885

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{6047}}^1$

素因数の和:6122

約数の個数: 48

約数和(自身を含む): 407586816

約数和(自身を除く): 190166931

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 423, 705, 765, 799, 2115, 2397, 3995, 6047, 7191, 11985, 18141, 30235, 35955, 54423, 90705, 102799, 272115, 284209, 308397, 513995, 852627, 925191, 1421045, 1541985, 2557881, 4263135, 4625955, 4831553, 12789405, 14494659, 24157765, 43483977, 72473295, 217419885]

約数ペア:

[(1, 217419885), (3, 72473295), (5, 43483977), (9, 24157765), (15, 14494659), (17, 12789405), (45, 4831553), (47, 4625955), (51, 4263135), (85, 2557881), (141, 1541985), (153, 1421045), (235, 925191), (255, 852627), (423, 513995), (705, 308397), (765, 284209), (799, 272115), (2115, 102799), (2397, 90705), (3995, 54423), (6047, 35955), (7191, 30235), (11985, 18141)]