21557302

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 16389578

約数列:

[1, 2, 13, 23, 26, 46, 47, 59, 94, 118, 169, 299, 338, 598, 611, 767, 1081, 1222, 1357, 1534, 2162, 2714, 2773, 3887, 5546, 7774, 7943, 9971, 14053, 15886, 17641, 19942, 28106, 35282, 36049, 63779, 72098, 127558, 182689, 229333, 365378, 458666, 468637, 829127, 937274, 1658254, 10778651, 21557302]

約数ペア:

[(1, 21557302), (2, 10778651), (13, 1658254), (23, 937274), (26, 829127), (46, 468637), (47, 458666), (59, 365378), (94, 229333), (118, 182689), (169, 127558), (299, 72098), (338, 63779), (598, 36049), (611, 35282), (767, 28106), (1081, 19942), (1222, 17641), (1357, 15886), (1534, 14053), (2162, 9971), (2714, 7943), (2773, 7774), (3887, 5546)]