31120047

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{593}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 55598400

約数和(自身を除く): 24478353

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 357, 441, 593, 833, 1029, 1071, 1779, 2499, 3087, 4151, 5337, 5831, 7497, 10081, 12453, 17493, 29057, 30243, 37359, 52479, 70567, 87171, 90729, 203399, 211701, 261513, 493969, 610197, 635103, 1481907, 1830591, 3457783, 4445721, 10373349, 31120047]

約数ペア:

[(1, 31120047), (3, 10373349), (7, 4445721), (9, 3457783), (17, 1830591), (21, 1481907), (49, 635103), (51, 610197), (63, 493969), (119, 261513), (147, 211701), (153, 203399), (343, 90729), (357, 87171), (441, 70567), (593, 52479), (833, 37359), (1029, 30243), (1071, 29057), (1779, 17493), (2499, 12453), (3087, 10081), (4151, 7497), (5337, 5831)]