19990124

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1583}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 24716692

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 154, 164, 287, 308, 451, 574, 902, 1148, 1583, 1804, 3157, 3166, 6314, 6332, 11081, 12628, 17413, 22162, 34826, 44324, 64903, 69652, 121891, 129806, 243782, 259612, 454321, 487564, 713933, 908642, 1427866, 1817284, 2855732, 4997531, 9995062, 19990124]

約数ペア:

[(1, 19990124), (2, 9995062), (4, 4997531), (7, 2855732), (11, 1817284), (14, 1427866), (22, 908642), (28, 713933), (41, 487564), (44, 454321), (77, 259612), (82, 243782), (154, 129806), (164, 121891), (287, 69652), (308, 64903), (451, 44324), (574, 34826), (902, 22162), (1148, 17413), (1583, 12628), (1804, 11081), (3157, 6332), (3166, 6314)]