20470527

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 37340160

約数和(自身を除く): 16869633

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 109, 231, 271, 327, 693, 763, 813, 981, 1199, 1897, 2289, 2439, 2981, 3597, 5691, 6867, 8393, 8943, 10791, 17073, 20867, 25179, 26829, 29539, 62601, 75537, 88617, 187803, 206773, 265851, 324929, 620319, 974787, 1860957, 2274503, 2924361, 6823509, 20470527]

約数ペア:

[(1, 20470527), (3, 6823509), (7, 2924361), (9, 2274503), (11, 1860957), (21, 974787), (33, 620319), (63, 324929), (77, 265851), (99, 206773), (109, 187803), (231, 88617), (271, 75537), (327, 62601), (693, 29539), (763, 26829), (813, 25179), (981, 20867), (1199, 17073), (1897, 10791), (2289, 8943), (2439, 8393), (2981, 6867), (3597, 5691)]