258638991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{1187}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 384265728

約数和(自身を除く): 125626737

約数列:

[1, 3, 13, 37, 39, 111, 151, 453, 481, 1187, 1443, 1963, 3561, 5587, 5889, 15431, 16761, 43919, 46293, 72631, 131757, 179237, 217893, 537711, 570947, 1712841, 2330081, 6631769, 6990243, 19895307, 86212997, 258638991]

約数ペア:

[(1, 258638991), (3, 86212997), (13, 19895307), (37, 6990243), (39, 6631769), (111, 2330081), (151, 1712841), (453, 570947), (481, 537711), (1187, 217893), (1443, 179237), (1963, 131757), (3561, 72631), (5587, 46293), (5889, 43919), (15431, 16761)]