21000700017

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{11177}}^1\times {\mathrm{18979}}^1$

素因数の和:30173

約数の個数: 24

約数和(自身を含む): 33096716640

約数和(自身を除く): 12096016623

約数列:

[1, 3, 9, 11, 33, 99, 11177, 18979, 33531, 56937, 100593, 122947, 170811, 208769, 368841, 626307, 1106523, 1878921, 212128283, 636384849, 1909154547, 2333411113, 7000233339, 21000700017]

約数ペア:

[(1, 21000700017), (3, 7000233339), (9, 2333411113), (11, 1909154547), (33, 636384849), (99, 212128283), (11177, 1878921), (18979, 1106523), (33531, 626307), (56937, 368841), (100593, 208769), (122947, 170811)]