21325430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4547}}^1$

素因数の和:4628

約数の個数: 32

約数和(自身を含む): 44534016

約数和(自身を除く): 23208586

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4547, 4690, 9094, 22735, 31829, 45470, 63658, 159145, 304649, 318290, 609298, 1523245, 2132543, 3046490, 4265086, 10662715, 21325430]

約数ペア:

[(1, 21325430), (2, 10662715), (5, 4265086), (7, 3046490), (10, 2132543), (14, 1523245), (35, 609298), (67, 318290), (70, 304649), (134, 159145), (335, 63658), (469, 45470), (670, 31829), (938, 22735), (2345, 9094), (4547, 4690)]