21225458

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{2939}}^1$

素因数の和:3121

約数の個数: 16

約数和(自身を含む): 33445440

約数和(自身を除く): 12219982

約数列:

[1, 2, 23, 46, 157, 314, 2939, 3611, 5878, 7222, 67597, 135194, 461423, 922846, 10612729, 21225458]

約数ペア:

[(1, 21225458), (2, 10612729), (23, 922846), (46, 461423), (157, 135194), (314, 67597), (2939, 7222), (3611, 5878)]