20937708

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1429}}^1$

素因数の和:1487

約数の個数: 72

約数和(自身を含む): 59339280

約数和(自身を除く): 38401572

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 37, 44, 66, 74, 99, 111, 132, 148, 198, 222, 333, 396, 407, 444, 666, 814, 1221, 1332, 1429, 1628, 2442, 2858, 3663, 4287, 4884, 5716, 7326, 8574, 12861, 14652, 15719, 17148, 25722, 31438, 47157, 51444, 52873, 62876, 94314, 105746, 141471, 158619, 188628, 211492, 282942, 317238, 475857, 565884, 581603, 634476, 951714, 1163206, 1744809, 1903428, 2326412, 3489618, 5234427, 6979236, 10468854, 20937708]

約数ペア:

[(1, 20937708), (2, 10468854), (3, 6979236), (4, 5234427), (6, 3489618), (9, 2326412), (11, 1903428), (12, 1744809), (18, 1163206), (22, 951714), (33, 634476), (36, 581603), (37, 565884), (44, 475857), (66, 317238), (74, 282942), (99, 211492), (111, 188628), (132, 158619), (148, 141471), (198, 105746), (222, 94314), (333, 62876), (396, 52873), (407, 51444), (444, 47157), (666, 31438), (814, 25722), (1221, 17148), (1332, 15719), (1429, 14652), (1628, 12861), (2442, 8574), (2858, 7326), (3663, 5716), (4287, 4884)]