21366471

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1427}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 35094528

約数和(自身を除く): 13728057

約数列:

[1, 3, 7, 21, 23, 31, 69, 93, 161, 217, 483, 651, 713, 1427, 2139, 4281, 4991, 9989, 14973, 29967, 32821, 44237, 98463, 132711, 229747, 309659, 689241, 928977, 1017451, 3052353, 7122157, 21366471]

約数ペア:

[(1, 21366471), (3, 7122157), (7, 3052353), (21, 1017451), (23, 928977), (31, 689241), (69, 309659), (93, 229747), (161, 132711), (217, 98463), (483, 44237), (651, 32821), (713, 29967), (1427, 14973), (2139, 9989), (4281, 4991)]