18811338

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 46835712

約数和(自身を除く): 28024374

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 131, 182, 262, 263, 273, 393, 526, 546, 786, 789, 917, 1578, 1703, 1834, 1841, 2751, 3406, 3419, 3682, 5109, 5502, 5523, 6838, 10218, 10257, 11046, 11921, 20514, 23842, 23933, 34453, 35763, 47866, 68906, 71526, 71799, 103359, 143598, 206718, 241171, 447889, 482342, 723513, 895778, 1343667, 1447026, 2687334, 3135223, 6270446, 9405669, 18811338]

約数ペア:

[(1, 18811338), (2, 9405669), (3, 6270446), (6, 3135223), (7, 2687334), (13, 1447026), (14, 1343667), (21, 895778), (26, 723513), (39, 482342), (42, 447889), (78, 241171), (91, 206718), (131, 143598), (182, 103359), (262, 71799), (263, 71526), (273, 68906), (393, 47866), (526, 35763), (546, 34453), (786, 23933), (789, 23842), (917, 20514), (1578, 11921), (1703, 11046), (1834, 10257), (1841, 10218), (2751, 6838), (3406, 5523), (3419, 5502), (3682, 5109)]