21409140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356819}}^1$

素因数の和:356831

約数の個数: 24

約数和(自身を含む): 59945760

約数和(自身を除く): 38536620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356819, 713638, 1070457, 1427276, 1784095, 2140914, 3568190, 4281828, 5352285, 7136380, 10704570, 21409140]

約数ペア:

[(1, 21409140), (2, 10704570), (3, 7136380), (4, 5352285), (5, 4281828), (6, 3568190), (10, 2140914), (12, 1784095), (15, 1427276), (20, 1070457), (30, 713638), (60, 356819)]