161778141

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15017}}^1$

素因数の和:15055

約数の個数: 40

約数和(自身を含む): 290748480

約数和(自身を除く): 128970339

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 3591, 10773, 15017, 45051, 105119, 135153, 285323, 315357, 405459, 855969, 946071, 1216377, 1997261, 2567907, 2838213, 5991783, 7703721, 8514639, 17975349, 23111163, 53926047, 161778141]

約数ペア:

[(1, 161778141), (3, 53926047), (7, 23111163), (9, 17975349), (19, 8514639), (21, 7703721), (27, 5991783), (57, 2838213), (63, 2567907), (81, 1997261), (133, 1216377), (171, 946071), (189, 855969), (399, 405459), (513, 315357), (567, 285323), (1197, 135153), (1539, 105119), (3591, 45051), (10773, 15017)]