21178294

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 35614080

約数和(自身を除く): 14435786

約数列:

[1, 2, 17, 29, 34, 47, 58, 94, 457, 493, 799, 914, 986, 1363, 1598, 2726, 7769, 13253, 15538, 21479, 23171, 26506, 42958, 46342, 225301, 365143, 450602, 622891, 730286, 1245782, 10589147, 21178294]

約数ペア:

[(1, 21178294), (2, 10589147), (17, 1245782), (29, 730286), (34, 622891), (47, 450602), (58, 365143), (94, 225301), (457, 46342), (493, 42958), (799, 26506), (914, 23171), (986, 21479), (1363, 15538), (1598, 13253), (2726, 7769)]