209640964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{108961}}^1$

素因数の和:109015

約数の個数: 24

約数和(自身を含む): 405774488

約数和(自身を除く): 196133524

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 108961, 217922, 435844, 1416493, 2832986, 4031557, 5665972, 8063114, 16126228, 52410241, 104820482, 209640964]

約数ペア:

[(1, 209640964), (2, 104820482), (4, 52410241), (13, 16126228), (26, 8063114), (37, 5665972), (52, 4031557), (74, 2832986), (148, 1416493), (481, 435844), (962, 217922), (1924, 108961)]