19153916

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 34151040

約数和(自身を除く): 14997124

約数列:

[1, 2, 4, 109, 197, 218, 223, 394, 436, 446, 788, 892, 21473, 24307, 42946, 43931, 48614, 85892, 87862, 97228, 175724, 4788479, 9576958, 19153916]

約数ペア:

[(1, 19153916), (2, 9576958), (4, 4788479), (109, 175724), (197, 97228), (218, 87862), (223, 85892), (394, 48614), (436, 43931), (446, 42946), (788, 24307), (892, 21473)]