21000496986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{872621}}^1$

素因数の和:872827

約数の個数: 48

約数和(自身を含む): 52273548288

約数和(自身を除く): 31273051302

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 191, 382, 573, 1146, 1337, 1719, 2674, 3438, 4011, 8022, 12033, 24066, 872621, 1745242, 2617863, 5235726, 6108347, 7853589, 12216694, 15707178, 18325041, 36650082, 54975123, 109950246, 166670611, 333341222, 500011833, 1000023666, 1166694277, 1500035499, 2333388554, 3000070998, 3500082831, 7000165662, 10500248493, 21000496986]

約数ペア:

[(1, 21000496986), (2, 10500248493), (3, 7000165662), (6, 3500082831), (7, 3000070998), (9, 2333388554), (14, 1500035499), (18, 1166694277), (21, 1000023666), (42, 500011833), (63, 333341222), (126, 166670611), (191, 109950246), (382, 54975123), (573, 36650082), (1146, 18325041), (1337, 15707178), (1719, 12216694), (2674, 7853589), (3438, 6108347), (4011, 5235726), (8022, 2617863), (12033, 1745242), (24066, 872621)]