19209476

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 41291712

約数和(自身を除く): 22082236

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 71, 86, 121, 142, 143, 172, 242, 284, 286, 473, 484, 559, 572, 781, 923, 946, 1118, 1562, 1573, 1846, 1892, 2236, 3053, 3124, 3146, 3692, 5203, 6106, 6149, 6292, 8591, 10153, 10406, 12212, 12298, 17182, 20306, 20812, 24596, 33583, 34364, 39689, 40612, 67166, 67639, 79378, 111683, 134332, 135278, 158756, 223366, 270556, 369413, 436579, 446732, 738826, 873158, 1477652, 1746316, 4802369, 9604738, 19209476]

約数ペア:

[(1, 19209476), (2, 9604738), (4, 4802369), (11, 1746316), (13, 1477652), (22, 873158), (26, 738826), (43, 446732), (44, 436579), (52, 369413), (71, 270556), (86, 223366), (121, 158756), (142, 135278), (143, 134332), (172, 111683), (242, 79378), (284, 67639), (286, 67166), (473, 40612), (484, 39689), (559, 34364), (572, 33583), (781, 24596), (923, 20812), (946, 20306), (1118, 17182), (1562, 12298), (1573, 12212), (1846, 10406), (1892, 10153), (2236, 8591), (3053, 6292), (3124, 6149), (3146, 6106), (3692, 5203)]