991936323

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1\times {\mathrm{457}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 1659879936

約数和(自身を除く): 667943613

約数列:

[1, 3, 7, 9, 21, 63, 131, 263, 393, 457, 789, 917, 1179, 1371, 1841, 2367, 2751, 3199, 4113, 5523, 8253, 9597, 16569, 28791, 34453, 59867, 103359, 120191, 179601, 241171, 310077, 360573, 419069, 538803, 723513, 841337, 1081719, 1257207, 2170539, 2524011, 3771621, 7572033, 15745021, 47235063, 110215147, 141705189, 330645441, 991936323]

約数ペア:

[(1, 991936323), (3, 330645441), (7, 141705189), (9, 110215147), (21, 47235063), (63, 15745021), (131, 7572033), (263, 3771621), (393, 2524011), (457, 2170539), (789, 1257207), (917, 1081719), (1179, 841337), (1371, 723513), (1841, 538803), (2367, 419069), (2751, 360573), (3199, 310077), (4113, 241171), (5523, 179601), (8253, 120191), (9597, 103359), (16569, 59867), (28791, 34453)]