20172357

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{223}}^1$

素因数の和:294

約数の個数: 36

約数和(自身を含む): 32206720

約数和(自身を除く): 12034363

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 223, 437, 529, 669, 1311, 1587, 2007, 3933, 4237, 4761, 5129, 10051, 12711, 15387, 30153, 38133, 46161, 90459, 97451, 117967, 292353, 353901, 877059, 1061703, 2241373, 6724119, 20172357]

約数ペア:

[(1, 20172357), (3, 6724119), (9, 2241373), (19, 1061703), (23, 877059), (57, 353901), (69, 292353), (171, 117967), (207, 97451), (223, 90459), (437, 46161), (529, 38133), (669, 30153), (1311, 15387), (1587, 12711), (2007, 10051), (3933, 5129), (4237, 4761)]