18395955

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 34201440

約数和(自身を除く): 15805485

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 139, 153, 173, 255, 417, 519, 695, 765, 865, 1251, 1557, 2085, 2363, 2595, 2941, 6255, 7089, 7785, 8823, 11815, 14705, 21267, 24047, 26469, 35445, 44115, 72141, 106335, 120235, 132345, 216423, 360705, 408799, 1082115, 1226397, 2043995, 3679191, 6131985, 18395955]

約数ペア:

[(1, 18395955), (3, 6131985), (5, 3679191), (9, 2043995), (15, 1226397), (17, 1082115), (45, 408799), (51, 360705), (85, 216423), (139, 132345), (153, 120235), (173, 106335), (255, 72141), (417, 44115), (519, 35445), (695, 26469), (765, 24047), (865, 21267), (1251, 14705), (1557, 11815), (2085, 8823), (2363, 7785), (2595, 7089), (2941, 6255)]