21418825845

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1979}}^1\times {\mathrm{19501}}^1$

素因数の和:21525

約数の個数: 32

約数和(自身を含む): 35215931520

約数和(自身を除く): 13797105675

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 1979, 5937, 9895, 19501, 29685, 58503, 73223, 97505, 219669, 292515, 366115, 721537, 1098345, 2164611, 3607685, 10823055, 38592479, 115777437, 192962395, 578887185, 1427921723, 4283765169, 7139608615, 21418825845]

約数ペア:

[(1, 21418825845), (3, 7139608615), (5, 4283765169), (15, 1427921723), (37, 578887185), (111, 192962395), (185, 115777437), (555, 38592479), (1979, 10823055), (5937, 3607685), (9895, 2164611), (19501, 1098345), (29685, 721537), (58503, 366115), (73223, 292515), (97505, 219669)]