21989440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6247}}^1$

素因数の和:6275

約数の個数: 56

約数和(自身を含む): 57131712

約数和(自身を除く): 35142272

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6247, 12494, 24988, 31235, 49976, 62470, 68717, 99952, 124940, 137434, 199904, 249880, 274868, 343585, 399808, 499760, 549736, 687170, 999520, 1099472, 1374340, 1999040, 2198944, 2748680, 4397888, 5497360, 10994720, 21989440]

約数ペア:

[(1, 21989440), (2, 10994720), (4, 5497360), (5, 4397888), (8, 2748680), (10, 2198944), (11, 1999040), (16, 1374340), (20, 1099472), (22, 999520), (32, 687170), (40, 549736), (44, 499760), (55, 399808), (64, 343585), (80, 274868), (88, 249880), (110, 199904), (160, 137434), (176, 124940), (220, 99952), (320, 68717), (352, 62470), (440, 49976), (704, 31235), (880, 24988), (1760, 12494), (3520, 6247)]