8211931

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 32

約数和(自身を含む): 10838016

約数和(自身を除く): 2626085

約数列:

[1, 7, 13, 31, 41, 71, 91, 217, 287, 403, 497, 533, 923, 1271, 2201, 2821, 2911, 3731, 6461, 8897, 15407, 16523, 20377, 28613, 37843, 90241, 115661, 200291, 264901, 631687, 1173133, 8211931]

約数ペア:

[(1, 8211931), (7, 1173133), (13, 631687), (31, 264901), (41, 200291), (71, 115661), (91, 90241), (217, 37843), (287, 28613), (403, 20377), (497, 16523), (533, 15407), (923, 8897), (1271, 6461), (2201, 3731), (2821, 2911)]