28921725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{6121}}^1$

素因数の和:6147

約数の個数: 48

約数和(自身を含む): 60730240

約数和(自身を除く): 31808515

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4725, 6121, 18363, 30605, 42847, 55089, 91815, 128541, 153025, 165267, 214235, 275445, 385623, 459075, 642705, 826335, 1071175, 1156869, 1377225, 1928115, 3213525, 4131675, 5784345, 9640575, 28921725]

約数ペア:

[(1, 28921725), (3, 9640575), (5, 5784345), (7, 4131675), (9, 3213525), (15, 1928115), (21, 1377225), (25, 1156869), (27, 1071175), (35, 826335), (45, 642705), (63, 459075), (75, 385623), (105, 275445), (135, 214235), (175, 165267), (189, 153025), (225, 128541), (315, 91815), (525, 55089), (675, 42847), (945, 30605), (1575, 18363), (4725, 6121)]