749979

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 20

約数和(自身を含む): 1149984

約数和(自身を除く): 400005

約数列:

[1, 3, 9, 27, 47, 81, 141, 197, 423, 591, 1269, 1773, 3807, 5319, 9259, 15957, 27777, 83331, 249993, 749979]

約数ペア:

[(1, 749979), (3, 249993), (9, 83331), (27, 27777), (47, 15957), (81, 9259), (141, 5319), (197, 3807), (423, 1773), (591, 1269)]