19909197

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28729}}^1$

素因数の和:28753

約数の個数: 24

約数和(自身を含む): 35855040

約数和(自身を除く): 15945843

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 28729, 86187, 201103, 258561, 316019, 603309, 948057, 1809927, 2212133, 2844171, 6636399, 19909197]

約数ペア:

[(1, 19909197), (3, 6636399), (7, 2844171), (9, 2212133), (11, 1809927), (21, 948057), (33, 603309), (63, 316019), (77, 258561), (99, 201103), (231, 86187), (693, 28729)]