21000901264

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4573367}}^1$

素因数の和:4573423

約数の個数: 40

約数和(自身を含む): 47636201088

約数和(自身を除く): 26635299824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4592, 4573367, 9146734, 18293468, 32013569, 36586936, 64027138, 73173872, 128054276, 187508047, 256108552, 375016094, 512217104, 750032188, 1312556329, 1500064376, 2625112658, 3000128752, 5250225316, 10500450632, 21000901264]

約数ペア:

[(1, 21000901264), (2, 10500450632), (4, 5250225316), (7, 3000128752), (8, 2625112658), (14, 1500064376), (16, 1312556329), (28, 750032188), (41, 512217104), (56, 375016094), (82, 256108552), (112, 187508047), (164, 128054276), (287, 73173872), (328, 64027138), (574, 36586936), (656, 32013569), (1148, 18293468), (2296, 9146734), (4592, 4573367)]