21110481

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 38548224

約数和(自身を除く): 17437743

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 391, 483, 857, 1071, 1173, 1449, 2571, 2737, 3519, 5999, 7713, 8211, 14569, 17997, 19711, 24633, 43707, 53991, 59133, 101983, 131121, 137977, 177399, 305949, 335087, 413931, 917847, 1005261, 1241793, 2345609, 3015783, 7036827, 21110481]

約数ペア:

[(1, 21110481), (3, 7036827), (7, 3015783), (9, 2345609), (17, 1241793), (21, 1005261), (23, 917847), (51, 413931), (63, 335087), (69, 305949), (119, 177399), (153, 137977), (161, 131121), (207, 101983), (357, 59133), (391, 53991), (483, 43707), (857, 24633), (1071, 19711), (1173, 17997), (1449, 14569), (2571, 8211), (2737, 7713), (3519, 5999)]