21702868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13331}}^1$

素因数の和:13383

約数の個数: 24

約数和(自身を含む): 42555744

約数和(自身を除く): 20852876

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13331, 26662, 53324, 146641, 293282, 493247, 586564, 986494, 1972988, 5425717, 10851434, 21702868]

約数ペア:

[(1, 21702868), (2, 10851434), (4, 5425717), (11, 1972988), (22, 986494), (37, 586564), (44, 493247), (74, 293282), (148, 146641), (407, 53324), (814, 26662), (1628, 13331)]