1228768891

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{1223}}^1\times {\mathrm{8443}}^1$

素因数の和:9690

約数の個数: 16

約数和(自身を含む): 1488305664

約数和(自身を除く): 259536773

約数列:

[1, 7, 17, 119, 1223, 8443, 8561, 20791, 59101, 143531, 145537, 1004717, 10325789, 72280523, 175538413, 1228768891]

約数ペア:

[(1, 1228768891), (7, 175538413), (17, 72280523), (119, 10325789), (1223, 1004717), (8443, 145537), (8561, 143531), (20791, 59101)]