205320213

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{171529}}^1$

素因数の和:171561

約数の個数: 24

約数和(自身を含む): 356782400

約数和(自身を除く): 151462187

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 171529, 514587, 1200703, 1543761, 3259051, 3602109, 9777153, 10806327, 22813357, 29331459, 68440071, 205320213]

約数ペア:

[(1, 205320213), (3, 68440071), (7, 29331459), (9, 22813357), (19, 10806327), (21, 9777153), (57, 3602109), (63, 3259051), (133, 1543761), (171, 1200703), (399, 514587), (1197, 171529)]