18821061

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 14725179

約数列:

[1, 3, 7, 9, 21, 23, 31, 63, 69, 93, 161, 207, 217, 279, 419, 483, 651, 713, 1257, 1449, 1953, 2139, 2933, 3771, 4991, 6417, 8799, 9637, 12989, 14973, 26397, 28911, 38967, 44919, 67459, 86733, 90923, 116901, 202377, 272769, 298747, 607131, 818307, 896241, 2091229, 2688723, 6273687, 18821061]

約数ペア:

[(1, 18821061), (3, 6273687), (7, 2688723), (9, 2091229), (21, 896241), (23, 818307), (31, 607131), (63, 298747), (69, 272769), (93, 202377), (161, 116901), (207, 90923), (217, 86733), (279, 67459), (419, 44919), (483, 38967), (651, 28911), (713, 26397), (1257, 14973), (1449, 12989), (1953, 9637), (2139, 8799), (2933, 6417), (3771, 4991)]