21700868

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 46792704

約数和(自身を除く): 25091836

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 62, 92, 124, 161, 217, 322, 434, 644, 713, 868, 1087, 1426, 2174, 2852, 4348, 4991, 7609, 9982, 15218, 19964, 25001, 30436, 33697, 50002, 67394, 100004, 134788, 175007, 235879, 350014, 471758, 700028, 775031, 943516, 1550062, 3100124, 5425217, 10850434, 21700868]

約数ペア:

[(1, 21700868), (2, 10850434), (4, 5425217), (7, 3100124), (14, 1550062), (23, 943516), (28, 775031), (31, 700028), (46, 471758), (62, 350014), (92, 235879), (124, 175007), (161, 134788), (217, 100004), (322, 67394), (434, 50002), (644, 33697), (713, 30436), (868, 25001), (1087, 19964), (1426, 15218), (2174, 9982), (2852, 7609), (4348, 4991)]