21756394

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 37138176

約数和(自身を除く): 15381782

約数列:

[1, 2, 11, 22, 47, 53, 94, 106, 397, 517, 583, 794, 1034, 1166, 2491, 4367, 4982, 8734, 18659, 21041, 27401, 37318, 42082, 54802, 205249, 231451, 410498, 462902, 988927, 1977854, 10878197, 21756394]

約数ペア:

[(1, 21756394), (2, 10878197), (11, 1977854), (22, 988927), (47, 462902), (53, 410498), (94, 231451), (106, 205249), (397, 54802), (517, 42082), (583, 37318), (794, 27401), (1034, 21041), (1166, 18659), (2491, 8734), (4367, 4982)]