21531129

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{953}}^1$

素因数の和:1416

約数の個数: 16

約数和(自身を含む): 30497472

約数和(自身を除く): 8966343

約数列:

[1, 3, 17, 51, 443, 953, 1329, 2859, 7531, 16201, 22593, 48603, 422179, 1266537, 7177043, 21531129]

約数ペア:

[(1, 21531129), (3, 7177043), (17, 1266537), (51, 422179), (443, 48603), (953, 22593), (1329, 16201), (2859, 7531)]