19746844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{947}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 37347408

約数和(自身を除く): 17600564

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 947, 1604, 1894, 3788, 5213, 10426, 12311, 20852, 24622, 49244, 379747, 759494, 1518988, 4936711, 9873422, 19746844]

約数ペア:

[(1, 19746844), (2, 9873422), (4, 4936711), (13, 1518988), (26, 759494), (52, 379747), (401, 49244), (802, 24622), (947, 20852), (1604, 12311), (1894, 10426), (3788, 5213)]