21106315928

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{391961}}^1$

素因数の和:392147

約数の個数: 32

約数和(自身を含む): 40638620160

約数和(自身を除く): 19532304232

約数列:

[1, 2, 4, 8, 53, 106, 127, 212, 254, 424, 508, 1016, 6731, 13462, 26924, 53848, 391961, 783922, 1567844, 3135688, 20773933, 41547866, 49779047, 83095732, 99558094, 166191464, 199116188, 398232376, 2638289491, 5276578982, 10553157964, 21106315928]

約数ペア:

[(1, 21106315928), (2, 10553157964), (4, 5276578982), (8, 2638289491), (53, 398232376), (106, 199116188), (127, 166191464), (212, 99558094), (254, 83095732), (424, 49779047), (508, 41547866), (1016, 20773933), (6731, 3135688), (13462, 1567844), (26924, 783922), (53848, 391961)]