20164851

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{967}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 33423104

約数和(自身を除く): 13258253

約数列:

[1, 3, 7, 9, 21, 63, 331, 967, 993, 2317, 2901, 2979, 6769, 6951, 8703, 20307, 20853, 60921, 320077, 960231, 2240539, 2880693, 6721617, 20164851]

約数ペア:

[(1, 20164851), (3, 6721617), (7, 2880693), (9, 2240539), (21, 960231), (63, 320077), (331, 60921), (967, 20853), (993, 20307), (2317, 8703), (2901, 6951), (2979, 6769)]