20836665

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6911}}^1$

素因数の和:6989

約数の個数: 24

約数和(自身を含む): 36661248

約数和(自身を除く): 15824583

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 6911, 20733, 34555, 62199, 103665, 310995, 463037, 1389111, 2315185, 4167333, 6945555, 20836665]

約数ペア:

[(1, 20836665), (3, 6945555), (5, 4167333), (9, 2315185), (15, 1389111), (45, 463037), (67, 310995), (201, 103665), (335, 62199), (603, 34555), (1005, 20733), (3015, 6911)]