21468670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^3\times {\mathrm{313}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 40920480

約数和(自身を除く): 19451810

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 313, 361, 626, 722, 1565, 1805, 3130, 3610, 5947, 6859, 11894, 13718, 29735, 34295, 59470, 68590, 112993, 225986, 564965, 1129930, 2146867, 4293734, 10734335, 21468670]

約数ペア:

[(1, 21468670), (2, 10734335), (5, 4293734), (10, 2146867), (19, 1129930), (38, 564965), (95, 225986), (190, 112993), (313, 68590), (361, 59470), (626, 34295), (722, 29735), (1565, 13718), (1805, 11894), (3130, 6859), (3610, 5947)]