21013342

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{709}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 37828800

約数和(自身を除く): 16815458

約数列:

[1, 2, 7, 14, 29, 58, 73, 146, 203, 406, 511, 709, 1022, 1418, 2117, 4234, 4963, 9926, 14819, 20561, 29638, 41122, 51757, 103514, 143927, 287854, 362299, 724598, 1500953, 3001906, 10506671, 21013342]

約数ペア:

[(1, 21013342), (2, 10506671), (7, 3001906), (14, 1500953), (29, 724598), (58, 362299), (73, 287854), (146, 143927), (203, 103514), (406, 51757), (511, 41122), (709, 29638), (1022, 20561), (1418, 14819), (2117, 9926), (4234, 4963)]