21310113

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 32919552

約数和(自身を除く): 11609439

約数列:

[1, 3, 11, 31, 33, 37, 93, 111, 341, 407, 563, 1023, 1147, 1221, 1689, 3441, 6193, 12617, 17453, 18579, 20831, 37851, 52359, 62493, 191983, 229141, 575949, 645761, 687423, 1937283, 7103371, 21310113]

約数ペア:

[(1, 21310113), (3, 7103371), (11, 1937283), (31, 687423), (33, 645761), (37, 575949), (93, 229141), (111, 191983), (341, 62493), (407, 52359), (563, 37851), (1023, 20831), (1147, 18579), (1221, 17453), (1689, 12617), (3441, 6193)]