21639730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3187}}^1$

素因数の和:3298

約数の個数: 32

約数和(自身を含む): 44989056

約数和(自身を除く): 23349326

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 97, 194, 485, 679, 970, 1358, 3187, 3395, 6374, 6790, 15935, 22309, 31870, 44618, 111545, 223090, 309139, 618278, 1545695, 2163973, 3091390, 4327946, 10819865, 21639730]

約数ペア:

[(1, 21639730), (2, 10819865), (5, 4327946), (7, 3091390), (10, 2163973), (14, 1545695), (35, 618278), (70, 309139), (97, 223090), (194, 111545), (485, 44618), (679, 31870), (970, 22309), (1358, 15935), (3187, 6790), (3395, 6374)]