21448390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1777}}^1$

素因数の和:1872

約数の個数: 32

約数和(自身を含む): 41477184

約数和(自身を除く): 20028794

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 1777, 2414, 3554, 6035, 8885, 12070, 17770, 30209, 60418, 126167, 151045, 252334, 302090, 630835, 1261670, 2144839, 4289678, 10724195, 21448390]

約数ペア:

[(1, 21448390), (2, 10724195), (5, 4289678), (10, 2144839), (17, 1261670), (34, 630835), (71, 302090), (85, 252334), (142, 151045), (170, 126167), (355, 60418), (710, 30209), (1207, 17770), (1777, 12070), (2414, 8885), (3554, 6035)]