20728548

素因数分解:

$2^2\times 3^4\times {\mathrm{63977}}^1$

素因数の和:63993

約数の個数: 30

約数和(自身を含む): 54189366

約数和(自身を除く): 33460818

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 63977, 127954, 191931, 255908, 383862, 575793, 767724, 1151586, 1727379, 2303172, 3454758, 5182137, 6909516, 10364274, 20728548]

約数ペア:

[(1, 20728548), (2, 10364274), (3, 6909516), (4, 5182137), (6, 3454758), (9, 2303172), (12, 1727379), (18, 1151586), (27, 767724), (36, 575793), (54, 383862), (81, 255908), (108, 191931), (162, 127954), (324, 63977)]