18971602

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:143

約数の個数: 36

約数和(自身を含む): 32442606

約数和(自身を除く): 13471004

約数列:

[1, 2, 13, 26, 37, 41, 74, 82, 169, 338, 481, 533, 962, 1066, 1369, 1517, 2738, 3034, 6253, 6929, 12506, 13858, 17797, 19721, 35594, 39442, 56129, 112258, 231361, 256373, 462722, 512746, 729677, 1459354, 9485801, 18971602]

約数ペア:

[(1, 18971602), (2, 9485801), (13, 1459354), (26, 729677), (37, 512746), (41, 462722), (74, 256373), (82, 231361), (169, 112258), (338, 56129), (481, 39442), (533, 35594), (962, 19721), (1066, 17797), (1369, 13858), (1517, 12506), (2738, 6929), (3034, 6253)]