287172921

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{3851}}^1$

素因数の和:3981

約数の個数: 32

約数和(自身を含む): 452625408

約数和(自身を除く): 165452487

約数列:

[1, 3, 7, 21, 53, 67, 159, 201, 371, 469, 1113, 1407, 3551, 3851, 10653, 11553, 24857, 26957, 74571, 80871, 204103, 258017, 612309, 774051, 1428721, 1806119, 4286163, 5418357, 13674901, 41024703, 95724307, 287172921]

約数ペア:

[(1, 287172921), (3, 95724307), (7, 41024703), (21, 13674901), (53, 5418357), (67, 4286163), (159, 1806119), (201, 1428721), (371, 774051), (469, 612309), (1113, 258017), (1407, 204103), (3551, 80871), (3851, 74571), (10653, 26957), (11553, 24857)]