21589711

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 27433728

約数和(自身を除く): 5844017

約数列:

[1, 11, 13, 17, 83, 107, 143, 187, 221, 913, 1079, 1177, 1391, 1411, 1819, 2431, 8881, 11869, 15301, 15521, 18343, 20009, 23647, 97691, 115453, 150977, 201773, 260117, 1269983, 1660747, 1962701, 21589711]

約数ペア:

[(1, 21589711), (11, 1962701), (13, 1660747), (17, 1269983), (83, 260117), (107, 201773), (143, 150977), (187, 115453), (221, 97691), (913, 23647), (1079, 20009), (1177, 18343), (1391, 15521), (1411, 15301), (1819, 11869), (2431, 8881)]