177779427

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{641}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 278083584

約数和(自身を除く): 100304157

約数列:

[1, 3, 7, 21, 47, 141, 281, 329, 641, 843, 987, 1923, 1967, 4487, 5901, 13207, 13461, 30127, 39621, 90381, 92449, 180121, 210889, 277347, 540363, 632667, 1260847, 3782541, 8465687, 25397061, 59259809, 177779427]

約数ペア:

[(1, 177779427), (3, 59259809), (7, 25397061), (21, 8465687), (47, 3782541), (141, 1260847), (281, 632667), (329, 540363), (641, 277347), (843, 210889), (987, 180121), (1923, 92449), (1967, 90381), (4487, 39621), (5901, 30127), (13207, 13461)]