20619975

素因数分解:

$3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1303}}^1$

素因数の和:1527

約数の個数: 24

約数和(自身を含む): 34279552

約数和(自身を除く): 13659577

約数列:

[1, 3, 5, 15, 25, 75, 211, 633, 1055, 1303, 3165, 3909, 5275, 6515, 15825, 19545, 32575, 97725, 274933, 824799, 1374665, 4123995, 6873325, 20619975]

約数ペア:

[(1, 20619975), (3, 6873325), (5, 4123995), (15, 1374665), (25, 824799), (75, 274933), (211, 97725), (633, 32575), (1055, 19545), (1303, 15825), (3165, 6515), (3909, 5275)]