21499084790

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1\times {\mathrm{63421}}^1$

素因数の和:63848

約数の個数: 32

約数和(自身を含む): 39179574720

約数和(自身を除く): 17680489930

約数列:

[1, 2, 5, 10, 109, 218, 311, 545, 622, 1090, 1555, 3110, 33899, 63421, 67798, 126842, 169495, 317105, 338990, 634210, 6912889, 13825778, 19723931, 34564445, 39447862, 69128890, 98619655, 197239310, 2149908479, 4299816958, 10749542395, 21499084790]

約数ペア:

[(1, 21499084790), (2, 10749542395), (5, 4299816958), (10, 2149908479), (109, 197239310), (218, 98619655), (311, 69128890), (545, 39447862), (622, 34564445), (1090, 19723931), (1555, 13825778), (3110, 6912889), (33899, 634210), (63421, 338990), (67798, 317105), (126842, 169495)]