21846615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{12239}}^1$

素因数の和:12271

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 20454825

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 12239, 36717, 61195, 85673, 183585, 208063, 257019, 428365, 624189, 1040315, 1285095, 1456441, 3120945, 4369323, 7282205, 21846615]

約数ペア:

[(1, 21846615), (3, 7282205), (5, 4369323), (7, 3120945), (15, 1456441), (17, 1285095), (21, 1040315), (35, 624189), (51, 428365), (85, 257019), (105, 208063), (119, 183585), (255, 85673), (357, 61195), (595, 36717), (1785, 12239)]