19712836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{241}}^1$

素因数の和:293

約数の個数: 54

約数和(自身を含む): 41230266

約数和(自身を除く): 21517430

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 169, 241, 242, 286, 338, 482, 484, 572, 676, 964, 1573, 1859, 2651, 3133, 3146, 3718, 5302, 6266, 6292, 7436, 10604, 12532, 20449, 29161, 34463, 40729, 40898, 58322, 68926, 81458, 81796, 116644, 137852, 162916, 379093, 448019, 758186, 896038, 1516372, 1792076, 4928209, 9856418, 19712836]

約数ペア:

[(1, 19712836), (2, 9856418), (4, 4928209), (11, 1792076), (13, 1516372), (22, 896038), (26, 758186), (44, 448019), (52, 379093), (121, 162916), (143, 137852), (169, 116644), (241, 81796), (242, 81458), (286, 68926), (338, 58322), (482, 40898), (484, 40729), (572, 34463), (676, 29161), (964, 20449), (1573, 12532), (1859, 10604), (2651, 7436), (3133, 6292), (3146, 6266), (3718, 5302)]