19965087177

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1\times {\mathrm{449}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 31294771200

約数和(自身を除く): 11329684023

約数列:

[1, 3, 7, 21, 83, 97, 249, 263, 291, 449, 581, 679, 789, 1347, 1743, 1841, 2037, 3143, 5523, 8051, 9429, 21829, 24153, 25511, 37267, 43553, 56357, 65487, 76533, 111801, 118087, 130659, 152803, 169071, 178577, 260869, 304871, 354261, 458409, 535731, 782607, 826609, 914613, 2117413, 2479827, 3614899, 6352239, 9801221, 10844697, 11454439, 14821891, 25304293, 29403663, 34363317, 44465673, 68608547, 75912879, 80181073, 205825641, 240543219, 950718437, 2852155311, 6655029059, 19965087177]

約数ペア:

[(1, 19965087177), (3, 6655029059), (7, 2852155311), (21, 950718437), (83, 240543219), (97, 205825641), (249, 80181073), (263, 75912879), (291, 68608547), (449, 44465673), (581, 34363317), (679, 29403663), (789, 25304293), (1347, 14821891), (1743, 11454439), (1841, 10844697), (2037, 9801221), (3143, 6352239), (5523, 3614899), (8051, 2479827), (9429, 2117413), (21829, 914613), (24153, 826609), (25511, 782607), (37267, 535731), (43553, 458409), (56357, 354261), (65487, 304871), (76533, 260869), (111801, 178577), (118087, 169071), (130659, 152803)]