21384072

素因数分解:

$2^3\times 3^2\times {\mathrm{43}}^1\times {\mathrm{6907}}^1$

素因数の和:6962

約数の個数: 48

約数和(自身を含む): 59270640

約数和(自身を除く): 37886568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 43, 72, 86, 129, 172, 258, 344, 387, 516, 774, 1032, 1548, 3096, 6907, 13814, 20721, 27628, 41442, 55256, 62163, 82884, 124326, 165768, 248652, 297001, 497304, 594002, 891003, 1188004, 1782006, 2376008, 2673009, 3564012, 5346018, 7128024, 10692036, 21384072]

約数ペア:

[(1, 21384072), (2, 10692036), (3, 7128024), (4, 5346018), (6, 3564012), (8, 2673009), (9, 2376008), (12, 1782006), (18, 1188004), (24, 891003), (36, 594002), (43, 497304), (72, 297001), (86, 248652), (129, 165768), (172, 124326), (258, 82884), (344, 62163), (387, 55256), (516, 41442), (774, 27628), (1032, 20721), (1548, 13814), (3096, 6907)]