21338373

素因数分解:

$3^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 12357627

約数列:

[1, 3, 7, 21, 49, 89, 147, 233, 267, 343, 623, 699, 1029, 1631, 1869, 4361, 4893, 11417, 13083, 20737, 30527, 34251, 62211, 79919, 91581, 145159, 239757, 435477, 1016113, 3048339, 7112791, 21338373]

約数ペア:

[(1, 21338373), (3, 7112791), (7, 3048339), (21, 1016113), (49, 435477), (89, 239757), (147, 145159), (233, 91581), (267, 79919), (343, 62211), (623, 34251), (699, 30527), (1029, 20737), (1631, 13083), (1869, 11417), (4361, 4893)]