18678254

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 17817106

約数列:

[1, 2, 7, 14, 19, 23, 38, 43, 46, 71, 86, 133, 142, 161, 266, 301, 322, 437, 497, 602, 817, 874, 989, 994, 1349, 1633, 1634, 1978, 2698, 3053, 3059, 3266, 5719, 6106, 6118, 6923, 9443, 11431, 11438, 13846, 18791, 18886, 21371, 22862, 31027, 37582, 42742, 58007, 62054, 70219, 116014, 131537, 140438, 217189, 263074, 406049, 434378, 491533, 812098, 983066, 1334161, 2668322, 9339127, 18678254]

約数ペア:

[(1, 18678254), (2, 9339127), (7, 2668322), (14, 1334161), (19, 983066), (23, 812098), (38, 491533), (43, 434378), (46, 406049), (71, 263074), (86, 217189), (133, 140438), (142, 131537), (161, 116014), (266, 70219), (301, 62054), (322, 58007), (437, 42742), (497, 37582), (602, 31027), (817, 22862), (874, 21371), (989, 18886), (994, 18791), (1349, 13846), (1633, 11438), (1634, 11431), (1978, 9443), (2698, 6923), (3053, 6118), (3059, 6106), (3266, 5719)]