81709761

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2207}}^1$

素因数の和:2301

約数の個数: 32

約数和(自身を含む): 130572288

約数和(自身を除く): 48862527

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 861, 903, 1763, 2207, 5289, 6621, 12341, 15449, 37023, 46347, 90487, 94901, 271461, 284703, 633409, 664307, 1900227, 1992921, 3890941, 11672823, 27236587, 81709761]

約数ペア:

[(1, 81709761), (3, 27236587), (7, 11672823), (21, 3890941), (41, 1992921), (43, 1900227), (123, 664307), (129, 633409), (287, 284703), (301, 271461), (861, 94901), (903, 90487), (1763, 46347), (2207, 37023), (5289, 15449), (6621, 12341)]