20872912

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19471}}^1$

素因数の和:19546

約数の個数: 20

約数和(自身を含む): 41046976

約数和(自身を除く): 20174064

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19471, 38942, 77884, 155768, 311536, 1304557, 2609114, 5218228, 10436456, 20872912]

約数ペア:

[(1, 20872912), (2, 10436456), (4, 5218228), (8, 2609114), (16, 1304557), (67, 311536), (134, 155768), (268, 77884), (536, 38942), (1072, 19471)]