18731752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 21910808

約数列:

[1, 2, 4, 8, 13, 23, 26, 41, 46, 52, 82, 92, 104, 164, 184, 191, 299, 328, 382, 533, 598, 764, 943, 1066, 1196, 1528, 1886, 2132, 2392, 2483, 3772, 4264, 4393, 4966, 7544, 7831, 8786, 9932, 12259, 15662, 17572, 19864, 24518, 31324, 35144, 49036, 57109, 62648, 98072, 101803, 114218, 180113, 203606, 228436, 360226, 407212, 456872, 720452, 814424, 1440904, 2341469, 4682938, 9365876, 18731752]

約数ペア:

[(1, 18731752), (2, 9365876), (4, 4682938), (8, 2341469), (13, 1440904), (23, 814424), (26, 720452), (41, 456872), (46, 407212), (52, 360226), (82, 228436), (92, 203606), (104, 180113), (164, 114218), (184, 101803), (191, 98072), (299, 62648), (328, 57109), (382, 49036), (533, 35144), (598, 31324), (764, 24518), (943, 19864), (1066, 17572), (1196, 15662), (1528, 12259), (1886, 9932), (2132, 8786), (2392, 7831), (2483, 7544), (3772, 4966), (4264, 4393)]