21007079421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12708457}}^1$

素因数の和:12708508

約数の個数: 16

約数和(自身を含む): 30500299200

約数和(自身を除く): 9493219779

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 12708457, 38125371, 241460683, 368545253, 724382049, 1105635759, 7002359807, 21007079421]

約数ペア:

[(1, 21007079421), (3, 7002359807), (19, 1105635759), (29, 724382049), (57, 368545253), (87, 241460683), (551, 38125371), (1653, 12708457)]