21096045

素因数分解:

$3^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 17429715

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 97, 135, 179, 243, 291, 405, 485, 537, 873, 895, 1215, 1455, 1611, 2619, 2685, 4365, 4833, 7857, 8055, 13095, 14499, 17363, 23571, 24165, 39285, 43497, 52089, 72495, 86815, 117855, 156267, 217485, 260445, 468801, 781335, 1406403, 2344005, 4219209, 7032015, 21096045]

約数ペア:

[(1, 21096045), (3, 7032015), (5, 4219209), (9, 2344005), (15, 1406403), (27, 781335), (45, 468801), (81, 260445), (97, 217485), (135, 156267), (179, 117855), (243, 86815), (291, 72495), (405, 52089), (485, 43497), (537, 39285), (873, 24165), (895, 23571), (1215, 17363), (1455, 14499), (1611, 13095), (2619, 8055), (2685, 7857), (4365, 4833)]