28251909

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 51262848

約数和(自身を除く): 23010939

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 357, 459, 567, 977, 1071, 1377, 1701, 2931, 3213, 4131, 6839, 8793, 9639, 16609, 20517, 26379, 28917, 49827, 61551, 79137, 116263, 149481, 184653, 237411, 348789, 448443, 553959, 1046367, 1345329, 1661877, 3139101, 4035987, 9417303, 28251909]

約数ペア:

[(1, 28251909), (3, 9417303), (7, 4035987), (9, 3139101), (17, 1661877), (21, 1345329), (27, 1046367), (51, 553959), (63, 448443), (81, 348789), (119, 237411), (153, 184653), (189, 149481), (243, 116263), (357, 79137), (459, 61551), (567, 49827), (977, 28917), (1071, 26379), (1377, 20517), (1701, 16609), (2931, 9639), (3213, 8793), (4131, 6839)]