21003416

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^2\times {\mathrm{709}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 47115600

約数和(自身を除く): 26112184

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 529, 644, 709, 1058, 1288, 1418, 2116, 2836, 3703, 4232, 4963, 5672, 7406, 9926, 14812, 16307, 19852, 29624, 32614, 39704, 65228, 114149, 130456, 228298, 375061, 456596, 750122, 913192, 1500244, 2625427, 3000488, 5250854, 10501708, 21003416]

約数ペア:

[(1, 21003416), (2, 10501708), (4, 5250854), (7, 3000488), (8, 2625427), (14, 1500244), (23, 913192), (28, 750122), (46, 456596), (56, 375061), (92, 228298), (161, 130456), (184, 114149), (322, 65228), (529, 39704), (644, 32614), (709, 29624), (1058, 19852), (1288, 16307), (1418, 14812), (2116, 9926), (2836, 7406), (3703, 5672), (4232, 4963)]