19814418

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{293}}^1$

素因数の和:348

約数の個数: 72

約数和(自身を含む): 49280868

約数和(自身を除く): 29466450

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 289, 293, 306, 442, 578, 586, 663, 867, 879, 1326, 1734, 1758, 1989, 2601, 2637, 3757, 3809, 3978, 4981, 5202, 5274, 7514, 7618, 9962, 11271, 11427, 14943, 22542, 22854, 29886, 33813, 34281, 44829, 64753, 67626, 68562, 84677, 89658, 129506, 169354, 194259, 254031, 388518, 508062, 582777, 762093, 1100801, 1165554, 1524186, 2201602, 3302403, 6604806, 9907209, 19814418]

約数ペア:

[(1, 19814418), (2, 9907209), (3, 6604806), (6, 3302403), (9, 2201602), (13, 1524186), (17, 1165554), (18, 1100801), (26, 762093), (34, 582777), (39, 508062), (51, 388518), (78, 254031), (102, 194259), (117, 169354), (153, 129506), (221, 89658), (234, 84677), (289, 68562), (293, 67626), (306, 64753), (442, 44829), (578, 34281), (586, 33813), (663, 29886), (867, 22854), (879, 22542), (1326, 14943), (1734, 11427), (1758, 11271), (1989, 9962), (2601, 7618), (2637, 7514), (3757, 5274), (3809, 5202), (3978, 4981)]