21040360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47819}}^1$

素因数の和:47841

約数の個数: 32

約数和(自身を含む): 51645600

約数和(自身を除く): 30605240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47819, 95638, 191276, 239095, 382552, 478190, 526009, 956380, 1052018, 1912760, 2104036, 2630045, 4208072, 5260090, 10520180, 21040360]

約数ペア:

[(1, 21040360), (2, 10520180), (4, 5260090), (5, 4208072), (8, 2630045), (10, 2104036), (11, 1912760), (20, 1052018), (22, 956380), (40, 526009), (44, 478190), (55, 382552), (88, 239095), (110, 191276), (220, 95638), (440, 47819)]