21995967

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 13001793

約数列:

[1, 3, 7, 21, 41, 59, 123, 177, 287, 413, 433, 861, 1239, 1299, 2419, 3031, 7257, 9093, 16933, 17753, 25547, 50799, 53259, 76641, 124271, 178829, 372813, 536487, 1047427, 3142281, 7331989, 21995967]

約数ペア:

[(1, 21995967), (3, 7331989), (7, 3142281), (21, 1047427), (41, 536487), (59, 372813), (123, 178829), (177, 124271), (287, 76641), (413, 53259), (433, 50799), (861, 25547), (1239, 17753), (1299, 16933), (2419, 9093), (3031, 7257)]