21494079

素因数分解:

$3^5\times {\mathrm{197}}^1\times {\mathrm{449}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 32432400

約数和(自身を除く): 10938321

約数列:

[1, 3, 9, 27, 81, 197, 243, 449, 591, 1347, 1773, 4041, 5319, 12123, 15957, 36369, 47871, 88453, 109107, 265359, 796077, 2388231, 7164693, 21494079]

約数ペア:

[(1, 21494079), (3, 7164693), (9, 2388231), (27, 796077), (81, 265359), (197, 109107), (243, 88453), (449, 47871), (591, 36369), (1347, 15957), (1773, 12123), (4041, 5319)]