40840821

素因数分解:

$3^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{769}}^1$

素因数の和:1066

約数の個数: 32

約数和(自身を含む): 69484800

約数和(自身を除く): 28643979

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 281, 769, 843, 1967, 2307, 2529, 5383, 5901, 6921, 7587, 16149, 17703, 20763, 48447, 53109, 145341, 216089, 648267, 1512623, 1944801, 4537869, 5834403, 13613607, 40840821]

約数ペア:

[(1, 40840821), (3, 13613607), (7, 5834403), (9, 4537869), (21, 1944801), (27, 1512623), (63, 648267), (189, 216089), (281, 145341), (769, 53109), (843, 48447), (1967, 20763), (2307, 17703), (2529, 16149), (5383, 7587), (5901, 6921)]