19810112

素因数分解:

$2^6\times 7^2\times {\mathrm{6317}}^1$

素因数の和:6343

約数の個数: 42

約数和(自身を含む): 45736002

約数和(自身を除く): 25925890

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6317, 12634, 25268, 44219, 50536, 88438, 101072, 176876, 202144, 309533, 353752, 404288, 619066, 707504, 1238132, 1415008, 2476264, 2830016, 4952528, 9905056, 19810112]

約数ペア:

[(1, 19810112), (2, 9905056), (4, 4952528), (7, 2830016), (8, 2476264), (14, 1415008), (16, 1238132), (28, 707504), (32, 619066), (49, 404288), (56, 353752), (64, 309533), (98, 202144), (112, 176876), (196, 101072), (224, 88438), (392, 50536), (448, 44219), (784, 25268), (1568, 12634), (3136, 6317)]