281724879

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 396864000

約数和(自身を除く): 115139121

約数列:

[1, 3, 29, 87, 103, 149, 211, 309, 447, 633, 2987, 4321, 6119, 8961, 12963, 15347, 18357, 21733, 31439, 46041, 65199, 94317, 445063, 630257, 911731, 1335189, 1890771, 2735193, 3238217, 9714651, 93908293, 281724879]

約数ペア:

[(1, 281724879), (3, 93908293), (29, 9714651), (87, 3238217), (103, 2735193), (149, 1890771), (211, 1335189), (309, 911731), (447, 630257), (633, 445063), (2987, 94317), (4321, 65199), (6119, 46041), (8961, 31439), (12963, 21733), (15347, 18357)]