21331810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:762

約数の個数: 32

約数和(自身を含む): 40383360

約数和(自身を除く): 19051550

約数列:

[1, 2, 5, 10, 23, 46, 115, 163, 230, 326, 569, 815, 1138, 1630, 2845, 3749, 5690, 7498, 13087, 18745, 26174, 37490, 65435, 92747, 130870, 185494, 463735, 927470, 2133181, 4266362, 10665905, 21331810]

約数ペア:

[(1, 21331810), (2, 10665905), (5, 4266362), (10, 2133181), (23, 927470), (46, 463735), (115, 185494), (163, 130870), (230, 92747), (326, 65435), (569, 37490), (815, 26174), (1138, 18745), (1630, 13087), (2845, 7498), (3749, 5690)]