661812

素因数分解:

$2^2\times 3^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 1559712

約数和(自身を除く): 897900

約数列:

[1, 2, 3, 4, 6, 12, 131, 262, 393, 421, 524, 786, 842, 1263, 1572, 1684, 2526, 5052, 55151, 110302, 165453, 220604, 330906, 661812]

約数ペア:

[(1, 661812), (2, 330906), (3, 220604), (4, 165453), (6, 110302), (12, 55151), (131, 5052), (262, 2526), (393, 1684), (421, 1572), (524, 1263), (786, 842)]