19721916466

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1\times {\mathrm{26947}}^1$

素因数の和:27874

約数の個数: 32

約数和(自身を含む): 34404619392

約数和(自身を除く): 14682702926

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 857, 1714, 5999, 11998, 26947, 52277, 53894, 104554, 188629, 365939, 377258, 731878, 1643767, 3287534, 11506369, 23012738, 23093579, 46187158, 161655053, 323310106, 1408708319, 2817416638, 9860958233, 19721916466]

約数ペア:

[(1, 19721916466), (2, 9860958233), (7, 2817416638), (14, 1408708319), (61, 323310106), (122, 161655053), (427, 46187158), (854, 23093579), (857, 23012738), (1714, 11506369), (5999, 3287534), (11998, 1643767), (26947, 731878), (52277, 377258), (53894, 365939), (104554, 188629)]