21589744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{509}}^1$

素因数の和:769

約数の個数: 40

約数和(自身を含む): 45912240

約数和(自身を除く): 24322496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 241, 482, 509, 964, 1018, 1928, 2036, 2651, 3856, 4072, 5302, 5599, 8144, 10604, 11198, 21208, 22396, 42416, 44792, 89584, 122669, 245338, 490676, 981352, 1349359, 1962704, 2698718, 5397436, 10794872, 21589744]

約数ペア:

[(1, 21589744), (2, 10794872), (4, 5397436), (8, 2698718), (11, 1962704), (16, 1349359), (22, 981352), (44, 490676), (88, 245338), (176, 122669), (241, 89584), (482, 44792), (509, 42416), (964, 22396), (1018, 21208), (1928, 11198), (2036, 10604), (2651, 8144), (3856, 5599), (4072, 5302)]