31021956

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 90155520

約数和(自身を除く): 59133564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 479, 514, 771, 958, 1028, 1437, 1542, 1799, 1916, 2313, 2874, 3084, 3353, 3598, 4311, 4626, 5397, 5748, 6706, 7196, 8622, 9252, 10059, 10794, 13412, 16191, 17244, 20118, 21588, 30177, 32382, 40236, 60354, 64764, 120708, 123103, 246206, 369309, 492412, 738618, 861721, 1107927, 1477236, 1723442, 2215854, 2585163, 3446884, 4431708, 5170326, 7755489, 10340652, 15510978, 31021956]

約数ペア:

[(1, 31021956), (2, 15510978), (3, 10340652), (4, 7755489), (6, 5170326), (7, 4431708), (9, 3446884), (12, 2585163), (14, 2215854), (18, 1723442), (21, 1477236), (28, 1107927), (36, 861721), (42, 738618), (63, 492412), (84, 369309), (126, 246206), (252, 123103), (257, 120708), (479, 64764), (514, 60354), (771, 40236), (958, 32382), (1028, 30177), (1437, 21588), (1542, 20118), (1799, 17244), (1916, 16191), (2313, 13412), (2874, 10794), (3084, 10059), (3353, 9252), (3598, 8622), (4311, 7196), (4626, 6706), (5397, 5748)]