1981421234

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1489}}^1$

素因数の和:1675

約数の個数: 48

約数和(自身を含む): 3350568960

約数和(自身を除く): 1369147726

約数列:

[1, 2, 13, 26, 31, 62, 127, 169, 254, 338, 403, 806, 1489, 1651, 2978, 3302, 3937, 5239, 7874, 10478, 19357, 21463, 38714, 42926, 46159, 51181, 92318, 102362, 189103, 251641, 378206, 503282, 600067, 665353, 1200134, 1330706, 2458339, 4916678, 5862193, 7800871, 11724386, 15601742, 31958407, 63916814, 76208509, 152417018, 990710617, 1981421234]

約数ペア:

[(1, 1981421234), (2, 990710617), (13, 152417018), (26, 76208509), (31, 63916814), (62, 31958407), (127, 15601742), (169, 11724386), (254, 7800871), (338, 5862193), (403, 4916678), (806, 2458339), (1489, 1330706), (1651, 1200134), (2978, 665353), (3302, 600067), (3937, 503282), (5239, 378206), (7874, 251641), (10478, 189103), (19357, 102362), (21463, 92318), (38714, 51181), (42926, 46159)]