21904190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28447}}^1$

素因数の和:28472

約数の個数: 32

約数和(自身を含む): 49158144

約数和(自身を除く): 27253954

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28447, 56894, 142235, 199129, 284470, 312917, 398258, 625834, 995645, 1564585, 1991290, 2190419, 3129170, 4380838, 10952095, 21904190]

約数ペア:

[(1, 21904190), (2, 10952095), (5, 4380838), (7, 3129170), (10, 2190419), (11, 1991290), (14, 1564585), (22, 995645), (35, 625834), (55, 398258), (70, 312917), (77, 284470), (110, 199129), (154, 142235), (385, 56894), (770, 28447)]