19645496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22932424

約数列:

[1, 2, 4, 8, 13, 23, 26, 43, 46, 52, 86, 92, 104, 172, 184, 191, 299, 344, 382, 559, 598, 764, 989, 1118, 1196, 1528, 1978, 2236, 2392, 2483, 3956, 4393, 4472, 4966, 7912, 8213, 8786, 9932, 12857, 16426, 17572, 19864, 25714, 32852, 35144, 51428, 57109, 65704, 102856, 106769, 114218, 188899, 213538, 228436, 377798, 427076, 456872, 755596, 854152, 1511192, 2455687, 4911374, 9822748, 19645496]

約数ペア:

[(1, 19645496), (2, 9822748), (4, 4911374), (8, 2455687), (13, 1511192), (23, 854152), (26, 755596), (43, 456872), (46, 427076), (52, 377798), (86, 228436), (92, 213538), (104, 188899), (172, 114218), (184, 106769), (191, 102856), (299, 65704), (344, 57109), (382, 51428), (559, 35144), (598, 32852), (764, 25714), (989, 19864), (1118, 17572), (1196, 16426), (1528, 12857), (1978, 9932), (2236, 8786), (2392, 8213), (2483, 7912), (3956, 4966), (4393, 4472)]