20380395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2897}}^1$

素因数の和:2979

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 17455893

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 2897, 7035, 8691, 14485, 20279, 43455, 60837, 101395, 194099, 304185, 582297, 970495, 1358693, 2911485, 4076079, 6793465, 20380395]

約数ペア:

[(1, 20380395), (3, 6793465), (5, 4076079), (7, 2911485), (15, 1358693), (21, 970495), (35, 582297), (67, 304185), (105, 194099), (201, 101395), (335, 60837), (469, 43455), (1005, 20279), (1407, 14485), (2345, 8691), (2897, 7035)]