20553705

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5503}}^1$

素因数の和:5597

約数の個数: 24

約数和(自身を含む): 36062208

約数和(自身を除く): 15508503

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5503, 16509, 27515, 49527, 82545, 247635, 456749, 1370247, 2283745, 4110741, 6851235, 20553705]

約数ペア:

[(1, 20553705), (3, 6851235), (5, 4110741), (9, 2283745), (15, 1370247), (45, 456749), (83, 247635), (249, 82545), (415, 49527), (747, 27515), (1245, 16509), (3735, 5503)]