21397383

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14767}}^1$

素因数の和:14803

約数の個数: 24

約数和(自身を含む): 36860928

約数和(自身を除く): 15463545

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14767, 44301, 103369, 132903, 310107, 339641, 930321, 1018923, 2377487, 3056769, 7132461, 21397383]

約数ペア:

[(1, 21397383), (3, 7132461), (7, 3056769), (9, 2377487), (21, 1018923), (23, 930321), (63, 339641), (69, 310107), (161, 132903), (207, 103369), (483, 44301), (1449, 14767)]