21655942

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20089}}^1$

素因数の和:20116

約数の個数: 24

約数和(自身を含む): 41224680

約数和(自身を除く): 19568738

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 20089, 40178, 140623, 220979, 281246, 441958, 984361, 1546853, 1968722, 3093706, 10827971, 21655942]

約数ペア:

[(1, 21655942), (2, 10827971), (7, 3093706), (11, 1968722), (14, 1546853), (22, 984361), (49, 441958), (77, 281246), (98, 220979), (154, 140623), (539, 40178), (1078, 20089)]