19700668

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:374

約数の個数: 36

約数和(自身を含む): 37774128

約数和(自身を除く): 18073460

約数列:

[1, 2, 4, 13, 26, 52, 151, 169, 193, 302, 338, 386, 604, 676, 772, 1963, 2509, 3926, 5018, 7852, 10036, 25519, 29143, 32617, 51038, 58286, 65234, 102076, 116572, 130468, 378859, 757718, 1515436, 4925167, 9850334, 19700668]

約数ペア:

[(1, 19700668), (2, 9850334), (4, 4925167), (13, 1515436), (26, 757718), (52, 378859), (151, 130468), (169, 116572), (193, 102076), (302, 65234), (338, 58286), (386, 51038), (604, 32617), (676, 29143), (772, 25519), (1963, 10036), (2509, 7852), (3926, 5018)]