19909980244

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{877}}^1\times {\mathrm{73709}}^1$

素因数の和:74608

約数の個数: 48

約数和(自身を含む): 43490079360

約数和(自身を除く): 23580099116

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 877, 1754, 3508, 6139, 9647, 12278, 19294, 24556, 38588, 67529, 73709, 135058, 147418, 270116, 294836, 515963, 810799, 1031926, 1621598, 2063852, 3243196, 5675593, 11351186, 22702372, 64642793, 129285586, 258571172, 452499551, 711070723, 904999102, 1422141446, 1809998204, 2844282892, 4977495061, 9954990122, 19909980244]

約数ペア:

[(1, 19909980244), (2, 9954990122), (4, 4977495061), (7, 2844282892), (11, 1809998204), (14, 1422141446), (22, 904999102), (28, 711070723), (44, 452499551), (77, 258571172), (154, 129285586), (308, 64642793), (877, 22702372), (1754, 11351186), (3508, 5675593), (6139, 3243196), (9647, 2063852), (12278, 1621598), (19294, 1031926), (24556, 810799), (38588, 515963), (67529, 294836), (73709, 270116), (135058, 147418)]