1971567765013

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1\times {\mathrm{143113}}^1$

素因数の和:143618

約数の個数: 48

約数和(自身を含む): 2549054975040

約数和(自身を除く): 577487210027

約数列:

[1, 7, 11, 49, 61, 77, 419, 427, 539, 671, 2933, 2989, 4609, 4697, 20531, 25559, 32263, 32879, 143113, 178913, 225841, 281149, 1001791, 1252391, 1574243, 1968043, 7012537, 8729893, 11019701, 13776301, 59964347, 61109251, 77137907, 96028823, 419750429, 427764757, 659607817, 672201761, 2938253003, 3657825167, 4617254719, 4705412327, 25604776169, 32320783033, 40236076837, 179233433183, 281652537859, 1971567765013]

約数ペア:

[(1, 1971567765013), (7, 281652537859), (11, 179233433183), (49, 40236076837), (61, 32320783033), (77, 25604776169), (419, 4705412327), (427, 4617254719), (539, 3657825167), (671, 2938253003), (2933, 672201761), (2989, 659607817), (4609, 427764757), (4697, 419750429), (20531, 96028823), (25559, 77137907), (32263, 61109251), (32879, 59964347), (143113, 13776301), (178913, 11019701), (225841, 8729893), (281149, 7012537), (1001791, 1968043), (1252391, 1574243)]