20884731

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4583}}^1$

素因数の和:4631

約数の個数: 24

約数和(自身を含む): 33444864

約数和(自身を除く): 12560133

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 4583, 13749, 32081, 96243, 142073, 224567, 426219, 673701, 994511, 2983533, 6961577, 20884731]

約数ペア:

[(1, 20884731), (3, 6961577), (7, 2983533), (21, 994511), (31, 673701), (49, 426219), (93, 224567), (147, 142073), (217, 96243), (651, 32081), (1519, 13749), (4557, 4583)]