15951988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 31497984

約数和(自身を除く): 15545996

約数列:

[1, 2, 4, 13, 26, 47, 52, 61, 94, 107, 122, 188, 214, 244, 428, 611, 793, 1222, 1391, 1586, 2444, 2782, 2867, 3172, 5029, 5564, 5734, 6527, 10058, 11468, 13054, 20116, 26108, 37271, 65377, 74542, 84851, 130754, 149084, 169702, 261508, 306769, 339404, 613538, 1227076, 3987997, 7975994, 15951988]

約数ペア:

[(1, 15951988), (2, 7975994), (4, 3987997), (13, 1227076), (26, 613538), (47, 339404), (52, 306769), (61, 261508), (94, 169702), (107, 149084), (122, 130754), (188, 84851), (214, 74542), (244, 65377), (428, 37271), (611, 26108), (793, 20116), (1222, 13054), (1391, 11468), (1586, 10058), (2444, 6527), (2782, 5734), (2867, 5564), (3172, 5029)]