21277725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40529}}^1$

素因数の和:40549

約数の個数: 24

約数和(自身を含む): 40205760

約数和(自身を除く): 18928035

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40529, 121587, 202645, 283703, 607935, 851109, 1013225, 1418515, 3039675, 4255545, 7092575, 21277725]

約数ペア:

[(1, 21277725), (3, 7092575), (5, 4255545), (7, 3039675), (15, 1418515), (21, 1013225), (25, 851109), (35, 607935), (75, 283703), (105, 202645), (175, 121587), (525, 40529)]