981981

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 1921920

約数和(自身を除く): 939939

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 109, 117, 143, 231, 273, 327, 429, 693, 763, 819, 981, 1001, 1199, 1287, 1417, 2289, 3003, 3597, 4251, 6867, 8393, 9009, 9919, 10791, 12753, 15587, 25179, 29757, 46761, 75537, 89271, 109109, 140283, 327327, 981981]

約数ペア:

[(1, 981981), (3, 327327), (7, 140283), (9, 109109), (11, 89271), (13, 75537), (21, 46761), (33, 29757), (39, 25179), (63, 15587), (77, 12753), (91, 10791), (99, 9919), (109, 9009), (117, 8393), (143, 6867), (231, 4251), (273, 3597), (327, 3003), (429, 2289), (693, 1417), (763, 1287), (819, 1199), (981, 1001)]