21080070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 39572730

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 107, 110, 165, 198, 199, 214, 321, 330, 398, 495, 535, 597, 642, 963, 990, 995, 1070, 1177, 1194, 1605, 1791, 1926, 1990, 2189, 2354, 2985, 3210, 3531, 3582, 4378, 4815, 5885, 5970, 6567, 7062, 8955, 9630, 10593, 10945, 11770, 13134, 17655, 17910, 19701, 21186, 21293, 21890, 32835, 35310, 39402, 42586, 52965, 63879, 65670, 98505, 105930, 106465, 127758, 191637, 197010, 212930, 234223, 319395, 383274, 468446, 638790, 702669, 958185, 1171115, 1405338, 1916370, 2108007, 2342230, 3513345, 4216014, 7026690, 10540035, 21080070]

約数ペア:

[(1, 21080070), (2, 10540035), (3, 7026690), (5, 4216014), (6, 3513345), (9, 2342230), (10, 2108007), (11, 1916370), (15, 1405338), (18, 1171115), (22, 958185), (30, 702669), (33, 638790), (45, 468446), (55, 383274), (66, 319395), (90, 234223), (99, 212930), (107, 197010), (110, 191637), (165, 127758), (198, 106465), (199, 105930), (214, 98505), (321, 65670), (330, 63879), (398, 52965), (495, 42586), (535, 39402), (597, 35310), (642, 32835), (963, 21890), (990, 21293), (995, 21186), (1070, 19701), (1177, 17910), (1194, 17655), (1605, 13134), (1791, 11770), (1926, 10945), (1990, 10593), (2189, 9630), (2354, 8955), (2985, 7062), (3210, 6567), (3531, 5970), (3582, 5885), (4378, 4815)]