215496729

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{148721}}^1$

素因数の和:148757

約数の個数: 24

約数和(自身を含む): 371210112

約数和(自身を除く): 155713383

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 148721, 446163, 1041047, 1338489, 3123141, 3420583, 9369423, 10261749, 23944081, 30785247, 71832243, 215496729]

約数ペア:

[(1, 215496729), (3, 71832243), (7, 30785247), (9, 23944081), (21, 10261749), (23, 9369423), (63, 3420583), (69, 3123141), (161, 1338489), (207, 1041047), (483, 446163), (1449, 148721)]