20106513

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:506

約数の個数: 36

約数和(自身を含む): 34145280

約数和(自身を除く): 14038767

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 359, 381, 441, 889, 1077, 1143, 2513, 2667, 3231, 6223, 7539, 8001, 17591, 18669, 22617, 45593, 52773, 56007, 136779, 158319, 319151, 410337, 957453, 2234057, 2872359, 6702171, 20106513]

約数ペア:

[(1, 20106513), (3, 6702171), (7, 2872359), (9, 2234057), (21, 957453), (49, 410337), (63, 319151), (127, 158319), (147, 136779), (359, 56007), (381, 52773), (441, 45593), (889, 22617), (1077, 18669), (1143, 17591), (2513, 8001), (2667, 7539), (3231, 6223)]