21773031

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 35228160

約数和(自身を除く): 13455129

約数列:

[1, 3, 7, 19, 21, 57, 133, 197, 277, 399, 591, 831, 1379, 1939, 3743, 4137, 5263, 5817, 11229, 15789, 26201, 36841, 54569, 78603, 110523, 163707, 381983, 1036811, 1145949, 3110433, 7257677, 21773031]

約数ペア:

[(1, 21773031), (3, 7257677), (7, 3110433), (19, 1145949), (21, 1036811), (57, 381983), (133, 163707), (197, 110523), (277, 78603), (399, 54569), (591, 36841), (831, 26201), (1379, 15789), (1939, 11229), (3743, 5817), (4137, 5263)]