248972409

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{207997}}^1$

素因数の和:208029

約数の個数: 24

約数和(自身を含む): 432635840

約数和(自身を除く): 183663431

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 207997, 623991, 1455979, 1871973, 3951943, 4367937, 11855829, 13103811, 27663601, 35567487, 82990803, 248972409]

約数ペア:

[(1, 248972409), (3, 82990803), (7, 35567487), (9, 27663601), (19, 13103811), (21, 11855829), (57, 4367937), (63, 3951943), (133, 1871973), (171, 1455979), (399, 623991), (1197, 207997)]