81806179

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 106315776

約数和(自身を除く): 24509597

約数列:

[1, 7, 13, 31, 47, 91, 217, 329, 403, 611, 617, 1457, 2821, 4277, 4319, 8021, 10199, 18941, 19127, 28999, 56147, 132587, 133889, 202993, 248651, 376987, 898969, 1740557, 2638909, 6292783, 11686597, 81806179]

約数ペア:

[(1, 81806179), (7, 11686597), (13, 6292783), (31, 2638909), (47, 1740557), (91, 898969), (217, 376987), (329, 248651), (403, 202993), (611, 133889), (617, 132587), (1457, 56147), (2821, 28999), (4277, 19127), (4319, 18941), (8021, 10199)]