21997545

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{63761}}^1$

素因数の和:63792

約数の個数: 16

約数和(自身を含む): 36726912

約数和(自身を除く): 14729367

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 63761, 191283, 318805, 956415, 1466503, 4399509, 7332515, 21997545]

約数ペア:

[(1, 21997545), (3, 7332515), (5, 4399509), (15, 1466503), (23, 956415), (69, 318805), (115, 191283), (345, 63761)]