21396957

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{2383}}^1$

素因数の和:2500

約数の個数: 16

約数和(自身を含む): 29637888

約数和(自身を除く): 8240931

約数列:

[1, 3, 41, 73, 123, 219, 2383, 2993, 7149, 8979, 97703, 173959, 293109, 521877, 7132319, 21396957]

約数ペア:

[(1, 21396957), (3, 7132319), (41, 521877), (73, 293109), (123, 173959), (219, 97703), (2383, 8979), (2993, 7149)]