21939540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{52237}}^1$

素因数の和:52256

約数の個数: 48

約数和(自身を含む): 70207872

約数和(自身を除く): 48268332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 52237, 104474, 156711, 208948, 261185, 313422, 365659, 522370, 626844, 731318, 783555, 1044740, 1096977, 1462636, 1567110, 1828295, 2193954, 3134220, 3656590, 4387908, 5484885, 7313180, 10969770, 21939540]

約数ペア:

[(1, 21939540), (2, 10969770), (3, 7313180), (4, 5484885), (5, 4387908), (6, 3656590), (7, 3134220), (10, 2193954), (12, 1828295), (14, 1567110), (15, 1462636), (20, 1096977), (21, 1044740), (28, 783555), (30, 731318), (35, 626844), (42, 522370), (60, 365659), (70, 313422), (84, 261185), (105, 208948), (140, 156711), (210, 104474), (420, 52237)]