19808745

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{443}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 34781184

約数和(自身を除く): 14972439

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 271, 443, 813, 1329, 1355, 2215, 2981, 4065, 4873, 6645, 8943, 14619, 14905, 24365, 44715, 73095, 120053, 360159, 600265, 1320583, 1800795, 3961749, 6602915, 19808745]

約数ペア:

[(1, 19808745), (3, 6602915), (5, 3961749), (11, 1800795), (15, 1320583), (33, 600265), (55, 360159), (165, 120053), (271, 73095), (443, 44715), (813, 24365), (1329, 14905), (1355, 14619), (2215, 8943), (2981, 6645), (4065, 4873)]