21909825

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4637}}^1$

素因数の和:4663

約数の個数: 48

約数和(自身を含む): 46008960

約数和(自身を除く): 24099135

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4637, 4725, 13911, 23185, 32459, 41733, 69555, 97377, 115925, 125199, 162295, 208665, 292131, 347775, 486885, 625995, 811475, 876393, 1043325, 1460655, 2434425, 3129975, 4381965, 7303275, 21909825]

約数ペア:

[(1, 21909825), (3, 7303275), (5, 4381965), (7, 3129975), (9, 2434425), (15, 1460655), (21, 1043325), (25, 876393), (27, 811475), (35, 625995), (45, 486885), (63, 347775), (75, 292131), (105, 208665), (135, 162295), (175, 125199), (189, 115925), (225, 97377), (315, 69555), (525, 41733), (675, 32459), (945, 23185), (1575, 13911), (4637, 4725)]