21253401

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 34218240

約数和(自身を除く): 12964839

約数列:

[1, 3, 9, 13, 27, 39, 117, 151, 351, 401, 453, 1203, 1359, 1963, 3609, 4077, 5213, 5889, 10827, 15639, 17667, 46917, 53001, 60551, 140751, 181653, 544959, 787163, 1634877, 2361489, 7084467, 21253401]

約数ペア:

[(1, 21253401), (3, 7084467), (9, 2361489), (13, 1634877), (27, 787163), (39, 544959), (117, 181653), (151, 140751), (351, 60551), (401, 53001), (453, 46917), (1203, 17667), (1359, 15639), (1963, 10827), (3609, 5889), (4077, 5213)]