1661323178

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{615761}}^1$

素因数の和:615853

約数の個数: 16

約数和(自身を含む): 2660091840

約数和(自身を除く): 998768662

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 615761, 1231522, 11699459, 23398918, 43719031, 87438062, 830661589, 1661323178]

約数ペア:

[(1, 1661323178), (2, 830661589), (19, 87438062), (38, 43719031), (71, 23398918), (142, 11699459), (1349, 1231522), (2698, 615761)]