21193669945

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{2417}}^1$

素因数の和:2674

約数の個数: 64

約数和(自身を含む): 30835883520

約数和(自身を除く): 9642213575

約数列:

[1, 5, 7, 29, 35, 53, 145, 163, 203, 265, 371, 815, 1015, 1141, 1537, 1855, 2417, 4727, 5705, 7685, 8639, 10759, 12085, 16919, 23635, 33089, 43195, 53795, 60473, 70093, 84595, 128101, 165445, 250531, 302365, 350465, 393971, 490651, 640505, 896707, 1252655, 1753717, 1969855, 2453255, 2757797, 3714929, 4483535, 8768585, 11425159, 13788985, 18574645, 20880463, 26004503, 57125795, 79976113, 104402315, 130022515, 146163241, 399880565, 605533427, 730816205, 3027667135, 4238733989, 21193669945]

約数ペア:

[(1, 21193669945), (5, 4238733989), (7, 3027667135), (29, 730816205), (35, 605533427), (53, 399880565), (145, 146163241), (163, 130022515), (203, 104402315), (265, 79976113), (371, 57125795), (815, 26004503), (1015, 20880463), (1141, 18574645), (1537, 13788985), (1855, 11425159), (2417, 8768585), (4727, 4483535), (5705, 3714929), (7685, 2757797), (8639, 2453255), (10759, 1969855), (12085, 1753717), (16919, 1252655), (23635, 896707), (33089, 640505), (43195, 490651), (53795, 393971), (60473, 350465), (70093, 302365), (84595, 250531), (128101, 165445)]