19782645

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3373}}^1$

素因数の和:3421

約数の個数: 32

約数和(自身を含む): 34981632

約数和(自身を除く): 15198987

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3373, 5865, 10119, 16865, 50595, 57341, 77579, 172023, 232737, 286705, 387895, 860115, 1163685, 1318843, 3956529, 6594215, 19782645]

約数ペア:

[(1, 19782645), (3, 6594215), (5, 3956529), (15, 1318843), (17, 1163685), (23, 860115), (51, 387895), (69, 286705), (85, 232737), (115, 172023), (255, 77579), (345, 57341), (391, 50595), (1173, 16865), (1955, 10119), (3373, 5865)]