19089860

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{983}}^1$

素因数の和:1963

約数の個数: 24

約数和(自身を含む): 40170816

約数和(自身を除く): 21080956

約数列:

[1, 2, 4, 5, 10, 20, 971, 983, 1942, 1966, 3884, 3932, 4855, 4915, 9710, 9830, 19420, 19660, 954493, 1908986, 3817972, 4772465, 9544930, 19089860]

約数ペア:

[(1, 19089860), (2, 9544930), (4, 4772465), (5, 3817972), (10, 1908986), (20, 954493), (971, 19660), (983, 19420), (1942, 9830), (1966, 9710), (3884, 4915), (3932, 4855)]