28706217

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 42614784

約数和(自身を除く): 13908567

約数列:

[1, 3, 17, 31, 51, 67, 93, 201, 271, 527, 813, 1139, 1581, 2077, 3417, 4607, 6231, 8401, 13821, 18157, 25203, 35309, 54471, 105927, 142817, 308669, 428451, 562867, 926007, 1688601, 9568739, 28706217]

約数ペア:

[(1, 28706217), (3, 9568739), (17, 1688601), (31, 926007), (51, 562867), (67, 428451), (93, 308669), (201, 142817), (271, 105927), (527, 54471), (813, 35309), (1139, 25203), (1581, 18157), (2077, 13821), (3417, 8401), (4607, 6231)]