21063752

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 40392000

約数和(自身を除く): 19328248

約数列:

[1, 2, 4, 8, 101, 131, 199, 202, 262, 398, 404, 524, 796, 808, 1048, 1592, 13231, 20099, 26069, 26462, 40198, 52138, 52924, 80396, 104276, 105848, 160792, 208552, 2632969, 5265938, 10531876, 21063752]

約数ペア:

[(1, 21063752), (2, 10531876), (4, 5265938), (8, 2632969), (101, 208552), (131, 160792), (199, 105848), (202, 104276), (262, 80396), (398, 52924), (404, 52138), (524, 40198), (796, 26462), (808, 26069), (1048, 20099), (1592, 13231)]