21104630

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{401}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 40232160

約数和(自身を除く): 19127530

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 277, 401, 554, 802, 1385, 2005, 2770, 4010, 5263, 7619, 10526, 15238, 26315, 38095, 52630, 76190, 111077, 222154, 555385, 1110770, 2110463, 4220926, 10552315, 21104630]

約数ペア:

[(1, 21104630), (2, 10552315), (5, 4220926), (10, 2110463), (19, 1110770), (38, 555385), (95, 222154), (190, 111077), (277, 76190), (401, 52630), (554, 38095), (802, 26315), (1385, 15238), (2005, 10526), (2770, 7619), (4010, 5263)]