21784070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1533

約数の個数: 64

約数和(自身を含む): 51494400

約数和(自身を除く): 29710330

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 55, 70, 77, 95, 110, 133, 154, 190, 209, 266, 385, 418, 665, 770, 1045, 1330, 1463, 1489, 2090, 2926, 2978, 7315, 7445, 10423, 14630, 14890, 16379, 20846, 28291, 32758, 52115, 56582, 81895, 104230, 114653, 141455, 163790, 198037, 229306, 282910, 311201, 396074, 573265, 622402, 990185, 1146530, 1556005, 1980370, 2178407, 3112010, 4356814, 10892035, 21784070]

約数ペア:

[(1, 21784070), (2, 10892035), (5, 4356814), (7, 3112010), (10, 2178407), (11, 1980370), (14, 1556005), (19, 1146530), (22, 990185), (35, 622402), (38, 573265), (55, 396074), (70, 311201), (77, 282910), (95, 229306), (110, 198037), (133, 163790), (154, 141455), (190, 114653), (209, 104230), (266, 81895), (385, 56582), (418, 52115), (665, 32758), (770, 28291), (1045, 20846), (1330, 16379), (1463, 14890), (1489, 14630), (2090, 10423), (2926, 7445), (2978, 7315)]