21379911553

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{37537}}^1$

素因数の和:38137

約数の個数: 32

約数和(自身を含む): 28757111040

約数和(自身を除く): 7377199487

約数列:

[1, 7, 11, 13, 77, 91, 143, 569, 1001, 3983, 6259, 7397, 37537, 43813, 51779, 81367, 262759, 412907, 487981, 569569, 2890349, 3415867, 5367791, 21358553, 37574537, 149509871, 234944083, 277661189, 1644608581, 1943628323, 3054273079, 21379911553]

約数ペア:

[(1, 21379911553), (7, 3054273079), (11, 1943628323), (13, 1644608581), (77, 277661189), (91, 234944083), (143, 149509871), (569, 37574537), (1001, 21358553), (3983, 5367791), (6259, 3415867), (7397, 2890349), (37537, 569569), (43813, 487981), (51779, 412907), (81367, 262759)]