20984890

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 38719296

約数和(自身を除く): 17734406

約数列:

[1, 2, 5, 10, 83, 131, 166, 193, 262, 386, 415, 655, 830, 965, 1310, 1930, 10873, 16019, 21746, 25283, 32038, 50566, 54365, 80095, 108730, 126415, 160190, 252830, 2098489, 4196978, 10492445, 20984890]

約数ペア:

[(1, 20984890), (2, 10492445), (5, 4196978), (10, 2098489), (83, 252830), (131, 160190), (166, 126415), (193, 108730), (262, 80095), (386, 54365), (415, 50566), (655, 32038), (830, 25283), (965, 21746), (1310, 16019), (1930, 10873)]