20181021693

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1\times {\mathrm{45247}}^1$

素因数の和:45641

約数の個数: 32

約数和(自身を含む): 31310168064

約数和(自身を除く): 11129146371

約数列:

[1, 3, 7, 21, 67, 201, 317, 469, 951, 1407, 2219, 6657, 21239, 45247, 63717, 135741, 148673, 316729, 446019, 950187, 3031549, 9094647, 14343299, 21220843, 43029897, 63662529, 100403093, 301209279, 961001033, 2883003099, 6727007231, 20181021693]

約数ペア:

[(1, 20181021693), (3, 6727007231), (7, 2883003099), (21, 961001033), (67, 301209279), (201, 100403093), (317, 63662529), (469, 43029897), (951, 21220843), (1407, 14343299), (2219, 9094647), (6657, 3031549), (21239, 950187), (45247, 446019), (63717, 316729), (135741, 148673)]