19173388

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 36

約数和(自身を含む): 36800568

約数和(自身を除く): 17627180

約数列:

[1, 2, 4, 13, 26, 52, 113, 169, 226, 251, 338, 452, 502, 676, 1004, 1469, 2938, 3263, 5876, 6526, 13052, 19097, 28363, 38194, 42419, 56726, 76388, 84838, 113452, 169676, 368719, 737438, 1474876, 4793347, 9586694, 19173388]

約数ペア:

[(1, 19173388), (2, 9586694), (4, 4793347), (13, 1474876), (26, 737438), (52, 368719), (113, 169676), (169, 113452), (226, 84838), (251, 76388), (338, 56726), (452, 42419), (502, 38194), (676, 28363), (1004, 19097), (1469, 13052), (2938, 6526), (3263, 5876)]