201908721

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{143503}}^1$

素因数の和:143580

約数の個数: 16

約数和(自身を含む): 312264704

約数和(自身を除く): 110355983

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 143503, 430509, 1004521, 3013563, 9614701, 28844103, 67302907, 201908721]

約数ペア:

[(1, 201908721), (3, 67302907), (7, 28844103), (21, 9614701), (67, 3013563), (201, 1004521), (469, 430509), (1407, 143503)]