21870273

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8923}}^1$

素因数の和:8988

約数の個数: 16

約数和(自身を含む): 31412480

約数和(自身を除く): 9542207

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8923, 26769, 169537, 383689, 508611, 1151067, 7290091, 21870273]

約数ペア:

[(1, 21870273), (3, 7290091), (19, 1151067), (43, 508611), (57, 383689), (129, 169537), (817, 26769), (2451, 8923)]