19639664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{739}}^1$

素因数の和:909

約数の個数: 40

約数和(自身を含む): 41842560

約数和(自身を除く): 22202896

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 151, 176, 302, 604, 739, 1208, 1478, 1661, 2416, 2956, 3322, 5912, 6644, 8129, 11824, 13288, 16258, 26576, 32516, 65032, 111589, 130064, 223178, 446356, 892712, 1227479, 1785424, 2454958, 4909916, 9819832, 19639664]

約数ペア:

[(1, 19639664), (2, 9819832), (4, 4909916), (8, 2454958), (11, 1785424), (16, 1227479), (22, 892712), (44, 446356), (88, 223178), (151, 130064), (176, 111589), (302, 65032), (604, 32516), (739, 26576), (1208, 16258), (1478, 13288), (1661, 11824), (2416, 8129), (2956, 6644), (3322, 5912)]