20753379

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 32566560

約数和(自身を除く): 11813181

約数列:

[1, 3, 9, 17, 51, 79, 101, 153, 237, 289, 303, 711, 867, 909, 1343, 1717, 2601, 4029, 5151, 7979, 12087, 15453, 22831, 23937, 29189, 68493, 71811, 87567, 135643, 205479, 262701, 406929, 1220787, 2305931, 6917793, 20753379]

約数ペア:

[(1, 20753379), (3, 6917793), (9, 2305931), (17, 1220787), (51, 406929), (79, 262701), (101, 205479), (153, 135643), (237, 87567), (289, 71811), (303, 68493), (711, 29189), (867, 23937), (909, 22831), (1343, 15453), (1717, 12087), (2601, 7979), (4029, 5151)]