257639891039

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{491}}^1\times {\mathrm{1231}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 276518043648

約数和(自身を除く): 18878152609

約数列:

[1, 23, 43, 431, 491, 989, 1231, 9913, 11293, 18533, 21113, 28313, 52933, 211621, 426259, 485599, 530561, 604421, 1217459, 4867283, 9099703, 12202903, 13901683, 22814123, 25990103, 209293169, 260505451, 524724829, 597772369, 5991625373, 11201734393, 257639891039]

約数ペア:

[(1, 257639891039), (23, 11201734393), (43, 5991625373), (431, 597772369), (491, 524724829), (989, 260505451), (1231, 209293169), (9913, 25990103), (11293, 22814123), (18533, 13901683), (21113, 12202903), (28313, 9099703), (52933, 4867283), (211621, 1217459), (426259, 604421), (485599, 530561)]