31038471

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:353

約数の個数: 40

約数和(自身を含む): 49065984

約数和(自身を除く): 18027513

約数列:

[1, 3, 9, 27, 31, 47, 81, 93, 141, 263, 279, 423, 789, 837, 1269, 1457, 2367, 2511, 3807, 4371, 7101, 8153, 12361, 13113, 21303, 24459, 37083, 39339, 73377, 111249, 118017, 220131, 333747, 383191, 660393, 1001241, 1149573, 3448719, 10346157, 31038471]

約数ペア:

[(1, 31038471), (3, 10346157), (9, 3448719), (27, 1149573), (31, 1001241), (47, 660393), (81, 383191), (93, 333747), (141, 220131), (263, 118017), (279, 111249), (423, 73377), (789, 39339), (837, 37083), (1269, 24459), (1457, 21303), (2367, 13113), (2511, 12361), (3807, 8153), (4371, 7101)]