20149947

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 36

約数和(自身を含む): 31672576

約数和(自身を除く): 11522629

約数列:

[1, 3, 9, 17, 51, 61, 127, 153, 183, 289, 381, 549, 867, 1037, 1143, 2159, 2601, 3111, 6477, 7747, 9333, 17629, 19431, 23241, 36703, 52887, 69723, 110109, 131699, 158661, 330327, 395097, 1185291, 2238883, 6716649, 20149947]

約数ペア:

[(1, 20149947), (3, 6716649), (9, 2238883), (17, 1185291), (51, 395097), (61, 330327), (127, 158661), (153, 131699), (183, 110109), (289, 69723), (381, 52887), (549, 36703), (867, 23241), (1037, 19431), (1143, 17629), (2159, 9333), (2601, 7747), (3111, 6477)]