18961560905

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{96553}}^1$

素因数の和:96777

約数の個数: 32

約数和(自身を含む): 26991863808

約数和(自身を除く): 8030302903

約数列:

[1, 5, 7, 31, 35, 155, 181, 217, 905, 1085, 1267, 5611, 6335, 28055, 39277, 96553, 196385, 482765, 675871, 2993143, 3379355, 14965715, 17476093, 20952001, 87380465, 104760005, 122332651, 541758883, 611663255, 2708794415, 3792312181, 18961560905]

約数ペア:

[(1, 18961560905), (5, 3792312181), (7, 2708794415), (31, 611663255), (35, 541758883), (155, 122332651), (181, 104760005), (217, 87380465), (905, 20952001), (1085, 17476093), (1267, 14965715), (5611, 3379355), (6335, 2993143), (28055, 675871), (39277, 482765), (96553, 196385)]