21989190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8831}}^1$

素因数の和:8924

約数の個数: 32

約数和(自身を含む): 53415936

約数和(自身を除く): 31426746

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 415, 498, 830, 1245, 2490, 8831, 17662, 26493, 44155, 52986, 88310, 132465, 264930, 732973, 1465946, 2198919, 3664865, 4397838, 7329730, 10994595, 21989190]

約数ペア:

[(1, 21989190), (2, 10994595), (3, 7329730), (5, 4397838), (6, 3664865), (10, 2198919), (15, 1465946), (30, 732973), (83, 264930), (166, 132465), (249, 88310), (415, 52986), (498, 44155), (830, 26493), (1245, 17662), (2490, 8831)]