19934564

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:864

約数の個数: 36

約数和(自身を含む): 38845044

約数和(自身を除く): 18910480

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 169, 338, 481, 676, 797, 962, 1594, 1924, 3188, 6253, 10361, 12506, 20722, 25012, 29489, 41444, 58978, 117956, 134693, 269386, 383357, 538772, 766714, 1533428, 4983641, 9967282, 19934564]

約数ペア:

[(1, 19934564), (2, 9967282), (4, 4983641), (13, 1533428), (26, 766714), (37, 538772), (52, 383357), (74, 269386), (148, 134693), (169, 117956), (338, 58978), (481, 41444), (676, 29489), (797, 25012), (962, 20722), (1594, 12506), (1924, 10361), (3188, 6253)]