21154935

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 35546112

約数和(自身を除く): 14391177

約数列:

[1, 3, 5, 15, 37, 47, 111, 141, 185, 235, 555, 705, 811, 1739, 2433, 4055, 5217, 8695, 12165, 26085, 30007, 38117, 90021, 114351, 150035, 190585, 450105, 571755, 1410329, 4230987, 7051645, 21154935]

約数ペア:

[(1, 21154935), (3, 7051645), (5, 4230987), (15, 1410329), (37, 571755), (47, 450105), (111, 190585), (141, 150035), (185, 114351), (235, 90021), (555, 38117), (705, 30007), (811, 26085), (1739, 12165), (2433, 8695), (4055, 5217)]