21273994

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:958

約数の個数: 32

約数和(自身を含む): 38390400

約数和(自身を除く): 17116406

約数列:

[1, 2, 7, 14, 29, 58, 61, 122, 203, 406, 427, 854, 859, 1718, 1769, 3538, 6013, 12026, 12383, 24766, 24911, 49822, 52399, 104798, 174377, 348754, 366793, 733586, 1519571, 3039142, 10636997, 21273994]

約数ペア:

[(1, 21273994), (2, 10636997), (7, 3039142), (14, 1519571), (29, 733586), (58, 366793), (61, 348754), (122, 174377), (203, 104798), (406, 52399), (427, 49822), (854, 24911), (859, 24766), (1718, 12383), (1769, 12026), (3538, 6013)]