21471331

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{947}}^1$

素因数の和:1074

約数の個数: 16

約数和(自身を含む): 25482240

約数和(自身を除く): 4010909

約数列:

[1, 7, 41, 79, 287, 553, 947, 3239, 6629, 22673, 38827, 74813, 271789, 523691, 3067333, 21471331]

約数ペア:

[(1, 21471331), (7, 3067333), (41, 523691), (79, 271789), (287, 74813), (553, 38827), (947, 22673), (3239, 6629)]