218393721

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7207}}^1$

素因数の和:7270

約数の個数: 48

約数和(自身を含む): 398804224

約数和(自身を除く): 180410503

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 259, 273, 333, 481, 777, 819, 1443, 2331, 3367, 4329, 7207, 10101, 21621, 30303, 50449, 64863, 93691, 151347, 266659, 281073, 454041, 655837, 799977, 843219, 1866613, 1967511, 2399931, 3466567, 5599839, 5902533, 10399701, 16799517, 24265969, 31199103, 72797907, 218393721]

約数ペア:

[(1, 218393721), (3, 72797907), (7, 31199103), (9, 24265969), (13, 16799517), (21, 10399701), (37, 5902533), (39, 5599839), (63, 3466567), (91, 2399931), (111, 1967511), (117, 1866613), (259, 843219), (273, 799977), (333, 655837), (481, 454041), (777, 281073), (819, 266659), (1443, 151347), (2331, 93691), (3367, 64863), (4329, 50449), (7207, 30303), (10101, 21621)]