20055147

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 32044032

約数和(自身を除く): 11988885

約数列:

[1, 3, 7, 21, 37, 53, 111, 159, 259, 371, 487, 777, 1113, 1461, 1961, 3409, 5883, 10227, 13727, 18019, 25811, 41181, 54057, 77433, 126133, 180677, 378399, 542031, 955007, 2865021, 6685049, 20055147]

約数ペア:

[(1, 20055147), (3, 6685049), (7, 2865021), (21, 955007), (37, 542031), (53, 378399), (111, 180677), (159, 126133), (259, 77433), (371, 54057), (487, 41181), (777, 25811), (1113, 18019), (1461, 13727), (1961, 10227), (3409, 5883)]