205122988

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{17401}}^1$

素因数の和:17833

約数の個数: 24

約数和(自身を含む): 411244064

約数和(自身を除く): 206121076

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 2947, 5894, 11788, 17401, 34802, 69604, 121807, 243614, 487228, 7325821, 14651642, 29303284, 51280747, 102561494, 205122988]

約数ペア:

[(1, 205122988), (2, 102561494), (4, 51280747), (7, 29303284), (14, 14651642), (28, 7325821), (421, 487228), (842, 243614), (1684, 121807), (2947, 69604), (5894, 34802), (11788, 17401)]