19520852

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:528

約数の個数: 36

約数和(自身を含む): 37630656

約数和(自身を除く): 18109804

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 169, 268, 338, 431, 676, 862, 871, 1724, 1742, 3484, 5603, 11206, 11323, 22412, 22646, 28877, 45292, 57754, 72839, 115508, 145678, 291356, 375401, 750802, 1501604, 4880213, 9760426, 19520852]

約数ペア:

[(1, 19520852), (2, 9760426), (4, 4880213), (13, 1501604), (26, 750802), (52, 375401), (67, 291356), (134, 145678), (169, 115508), (268, 72839), (338, 57754), (431, 45292), (676, 28877), (862, 22646), (871, 22412), (1724, 11323), (1742, 11206), (3484, 5603)]