18674967

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 27498240

約数和(自身を除く): 8823273

約数列:

[1, 3, 19, 41, 57, 61, 123, 131, 183, 393, 779, 1159, 2337, 2489, 2501, 3477, 5371, 7467, 7503, 7991, 16113, 23973, 47519, 102049, 142557, 151829, 306147, 327631, 455487, 982893, 6224989, 18674967]

約数ペア:

[(1, 18674967), (3, 6224989), (19, 982893), (41, 455487), (57, 327631), (61, 306147), (123, 151829), (131, 142557), (183, 102049), (393, 47519), (779, 23973), (1159, 16113), (2337, 7991), (2489, 7503), (2501, 7467), (3477, 5371)]