17978058

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 46080000

約数和(自身を除く): 28101942

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 199, 239, 378, 398, 478, 597, 717, 1194, 1393, 1434, 1673, 1791, 2151, 2786, 3346, 3582, 4179, 4302, 5019, 5373, 6453, 8358, 10038, 10746, 12537, 12906, 15057, 25074, 30114, 37611, 45171, 47561, 75222, 90342, 95122, 142683, 285366, 332927, 428049, 665854, 856098, 998781, 1284147, 1997562, 2568294, 2996343, 5992686, 8989029, 17978058]

約数ペア:

[(1, 17978058), (2, 8989029), (3, 5992686), (6, 2996343), (7, 2568294), (9, 1997562), (14, 1284147), (18, 998781), (21, 856098), (27, 665854), (42, 428049), (54, 332927), (63, 285366), (126, 142683), (189, 95122), (199, 90342), (239, 75222), (378, 47561), (398, 45171), (478, 37611), (597, 30114), (717, 25074), (1194, 15057), (1393, 12906), (1434, 12537), (1673, 10746), (1791, 10038), (2151, 8358), (2786, 6453), (3346, 5373), (3582, 5019), (4179, 4302)]