21090930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1499}}^1$

素因数の和:1583

約数の個数: 64

約数和(自身を含む): 58752000

約数和(自身を除く): 37661070

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 67, 70, 105, 134, 201, 210, 335, 402, 469, 670, 938, 1005, 1407, 1499, 2010, 2345, 2814, 2998, 4497, 4690, 7035, 7495, 8994, 10493, 14070, 14990, 20986, 22485, 31479, 44970, 52465, 62958, 100433, 104930, 157395, 200866, 301299, 314790, 502165, 602598, 703031, 1004330, 1406062, 1506495, 2109093, 3012990, 3515155, 4218186, 7030310, 10545465, 21090930]

約数ペア:

[(1, 21090930), (2, 10545465), (3, 7030310), (5, 4218186), (6, 3515155), (7, 3012990), (10, 2109093), (14, 1506495), (15, 1406062), (21, 1004330), (30, 703031), (35, 602598), (42, 502165), (67, 314790), (70, 301299), (105, 200866), (134, 157395), (201, 104930), (210, 100433), (335, 62958), (402, 52465), (469, 44970), (670, 31479), (938, 22485), (1005, 20986), (1407, 14990), (1499, 14070), (2010, 10493), (2345, 8994), (2814, 7495), (2998, 7035), (4497, 4690)]