21056960

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2861}}^1$

素因数の和:2901

約数の個数: 56

約数和(自身を含む): 52340256

約数和(自身を除く): 31283296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2861, 3680, 5722, 7360, 11444, 14305, 22888, 28610, 45776, 57220, 65803, 91552, 114440, 131606, 183104, 228880, 263212, 329015, 457760, 526424, 658030, 915520, 1052848, 1316060, 2105696, 2632120, 4211392, 5264240, 10528480, 21056960]

約数ペア:

[(1, 21056960), (2, 10528480), (4, 5264240), (5, 4211392), (8, 2632120), (10, 2105696), (16, 1316060), (20, 1052848), (23, 915520), (32, 658030), (40, 526424), (46, 457760), (64, 329015), (80, 263212), (92, 228880), (115, 183104), (160, 131606), (184, 114440), (230, 91552), (320, 65803), (368, 57220), (460, 45776), (736, 28610), (920, 22888), (1472, 14305), (1840, 11444), (2861, 7360), (3680, 5722)]