1978389

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1013}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 3374592

約数和(自身を除く): 1396203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1013, 1953, 3039, 7091, 9117, 21273, 31403, 63819, 94209, 219821, 282627, 659463, 1978389]

約数ペア:

[(1, 1978389), (3, 659463), (7, 282627), (9, 219821), (21, 94209), (31, 63819), (63, 31403), (93, 21273), (217, 9117), (279, 7091), (651, 3039), (1013, 1953)]