20392701

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 11709699

約数列:

[1, 3, 7, 21, 59, 109, 151, 177, 327, 413, 453, 763, 1057, 1239, 2289, 3171, 6431, 8909, 16459, 19293, 26727, 45017, 49377, 62363, 115213, 135051, 187089, 345639, 971081, 2913243, 6797567, 20392701]

約数ペア:

[(1, 20392701), (3, 6797567), (7, 2913243), (21, 971081), (59, 345639), (109, 187089), (151, 135051), (177, 115213), (327, 62363), (413, 49377), (453, 45017), (763, 26727), (1057, 19293), (1239, 16459), (2289, 8909), (3171, 6431)]