21144003

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2687}}^1$

素因数の和:2794

約数の個数: 16

約数和(自身を含む): 29331456

約数和(自身を除く): 8187453

約数列:

[1, 3, 43, 61, 129, 183, 2623, 2687, 7869, 8061, 115541, 163907, 346623, 491721, 7048001, 21144003]

約数ペア:

[(1, 21144003), (3, 7048001), (43, 491721), (61, 346623), (129, 163907), (183, 115541), (2623, 8061), (2687, 7869)]