201718881

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3469}}^1$

素因数の和:3566

約数の個数: 48

約数和(自身を含む): 363767040

約数和(自身を除く): 162048159

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 71, 91, 117, 213, 273, 497, 639, 819, 923, 1491, 2769, 3469, 4473, 6461, 8307, 10407, 19383, 24283, 31221, 45097, 58149, 72849, 135291, 218547, 246299, 315679, 405873, 738897, 947037, 1724093, 2216691, 2841111, 3201887, 5172279, 9605661, 15516837, 22413209, 28816983, 67239627, 201718881]

約数ペア:

[(1, 201718881), (3, 67239627), (7, 28816983), (9, 22413209), (13, 15516837), (21, 9605661), (39, 5172279), (63, 3201887), (71, 2841111), (91, 2216691), (117, 1724093), (213, 947037), (273, 738897), (497, 405873), (639, 315679), (819, 246299), (923, 218547), (1491, 135291), (2769, 72849), (3469, 58149), (4473, 45097), (6461, 31221), (8307, 24283), (10407, 19383)]