21115035

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{887}}^1$

素因数の和:944

約数の個数: 36

約数和(自身を含む): 38302992

約数和(自身を除く): 17187957

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 887, 1035, 1587, 2645, 2661, 4435, 4761, 7935, 7983, 13305, 20401, 23805, 39915, 61203, 102005, 183609, 306015, 469223, 918045, 1407669, 2346115, 4223007, 7038345, 21115035]

約数ペア:

[(1, 21115035), (3, 7038345), (5, 4223007), (9, 2346115), (15, 1407669), (23, 918045), (45, 469223), (69, 306015), (115, 183609), (207, 102005), (345, 61203), (529, 39915), (887, 23805), (1035, 20401), (1587, 13305), (2645, 7983), (2661, 7935), (4435, 4761)]