21540200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9791}}^1$

素因数の和:9818

約数の個数: 48

約数和(自身を含む): 54639360

約数和(自身を除く): 33099160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9791, 19582, 39164, 48955, 78328, 97910, 107701, 195820, 215402, 244775, 391640, 430804, 489550, 538505, 861608, 979100, 1077010, 1958200, 2154020, 2692525, 4308040, 5385050, 10770100, 21540200]

約数ペア:

[(1, 21540200), (2, 10770100), (4, 5385050), (5, 4308040), (8, 2692525), (10, 2154020), (11, 1958200), (20, 1077010), (22, 979100), (25, 861608), (40, 538505), (44, 489550), (50, 430804), (55, 391640), (88, 244775), (100, 215402), (110, 195820), (200, 107701), (220, 97910), (275, 78328), (440, 48955), (550, 39164), (1100, 19582), (2200, 9791)]